Check broken links, update for HTTPS everywhere

2024-09-19 17:42:14 +02:00 · 2024-04-01 20:48:10 +02:00 · 2024-04-01 20:48:10 +02:00 · dfa731a087
commit dfa731a087
parent f74f3681a5
66 changed files with 103 additions and 113 deletions
--- a/README.md
+++ b/README.md
@ -41,7 +41,7 @@ you should look at before rolling your own. Try [SwiftMailer](https://swiftmaile
 , [Laminas/Mail](https://docs.laminas.dev/laminas-mail/), [ZetaComponents](https://github.com/zetacomponents/Mail), etc.

 ## License
-This software is distributed under the [LGPL 2.1](http://www.gnu.org/licenses/lgpl-2.1.html) license, along with the [GPL Cooperation Commitment](https://gplcc.github.io/gplcc/). Please read [LICENSE](https://github.com/PHPMailer/PHPMailer/blob/master/LICENSE) for information on the software availability and distribution.
+This software is distributed under the [LGPL 2.1](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html) license, along with the [GPL Cooperation Commitment](https://gplcc.github.io/gplcc/). Please read [LICENSE](https://github.com/PHPMailer/PHPMailer/blob/master/LICENSE) for information on the software availability and distribution.

 ## Installation & loading
 PHPMailer is available on [Packagist](https://packagist.org/packages/phpmailer/phpmailer) (using semantic versioning), and installation via [Composer](https://getcomposer.org) is the recommended way to install PHPMailer. Just add this line to your `composer.json` file:
@ -144,7 +144,7 @@ If you are re-using the instance (e.g. when sending to a mailing list), you may
 That's it. You should now be ready to use PHPMailer!

 ## Localization
-PHPMailer defaults to English, but in the [language](https://github.com/PHPMailer/PHPMailer/tree/master/language/) folder, you'll find many translations for PHPMailer error messages that you may encounter. Their filenames contain [ISO 639-1](http://en.wikipedia.org/wiki/ISO_639-1) language code for the translations, for example `fr` for French. To specify a language, you need to tell PHPMailer which one to use, like this:
+PHPMailer defaults to English, but in the [language](https://github.com/PHPMailer/PHPMailer/tree/master/language/) folder, you'll find many translations for PHPMailer error messages that you may encounter. Their filenames contain [ISO 639-1](https://en.wikipedia.org/wiki/ISO_639-1) language code for the translations, for example `fr` for French. To specify a language, you need to tell PHPMailer which one to use, like this:

 ```php
 //To load the French version
@ -162,9 +162,9 @@ To reduce PHPMailer's deployed code footprint, examples are not included if you

 Complete generated API documentation is [available online](https://phpmailer.github.io/PHPMailer/).

-You can generate complete API-level documentation by running `phpdoc` in the top-level folder, and documentation will appear in the `docs` folder, though you'll need to have [PHPDocumentor](http://www.phpdoc.org) installed. You may find [the unit tests](https://github.com/PHPMailer/PHPMailer/blob/master/test/PHPMailerTest.php) a good reference for how to do various operations such as encryption.
+You can generate complete API-level documentation by running `phpdoc` in the top-level folder, and documentation will appear in the `docs` folder, though you'll need to have [PHPDocumentor](https://www.phpdoc.org) installed. You may find [the unit tests](https://github.com/PHPMailer/PHPMailer/blob/master/test/PHPMailerTest.php) a good reference for how to do various operations such as encryption.

-If the documentation doesn't cover what you need, search the [many questions on Stack Overflow](http://stackoverflow.com/questions/tagged/phpmailer), and before you ask a question about "SMTP Error: Could not connect to SMTP host.", [read the troubleshooting guide](https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting).
+If the documentation doesn't cover what you need, search the [many questions on Stack Overflow](https://stackoverflow.com/questions/tagged/phpmailer), and before you ask a question about "SMTP Error: Could not connect to SMTP host.", [read the troubleshooting guide](https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting).

 ## Tests
 [PHPMailer tests](https://github.com/PHPMailer/PHPMailer/tree/master/test/) use PHPUnit 9, with [a polyfill](https://github.com/Yoast/PHPUnit-Polyfills) to let 9-style tests run on older PHPUnit and PHP versions.
@ -213,7 +213,7 @@ use. [Learn more.](https://tidelift.com/subscription/pkg/packagist-phpmailer-php
 See [changelog](changelog.md).

 ## History
- PHPMailer was originally written in 2001 by Brent R. Matzelle as a [SourceForge project](http://sourceforge.net/projects/phpmailer/).
+- PHPMailer was originally written in 2001 by Brent R. Matzelle as a [SourceForge project](https://sourceforge.net/projects/phpmailer/).
 - [Marcus Bointon](https://github.com/Synchro) (`coolbru` on SF) and Andy Prevost (`codeworxtech`) took over the project in 2004.
 - Became an Apache incubator project on Google Code in 2010, managed by Jim Jagielski.
 - Marcus created [his fork on GitHub](https://github.com/Synchro/PHPMailer) in 2008.
--- a/SECURITY.md
+++ b/SECURITY.md
@ -19,7 +19,7 @@ PHPMailer versions prior to 5.2.22 (released January 9th 2017) have a local file

 PHPMailer versions prior to 5.2.20 (released December 28th 2016) are vulnerable to [CVE-2016-10045](https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-10045) a remote code execution vulnerability, responsibly reported by [Dawid Golunski](https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10045-Vuln-Patch-Bypass.html), and patched by Paul Buonopane (@Zenexer).

-PHPMailer versions prior to 5.2.18 (released December 2016) are vulnerable to [CVE-2016-10033](https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-10033) a remote code execution vulnerability, responsibly reported by [Dawid Golunski](http://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html).
+PHPMailer versions prior to 5.2.18 (released December 2016) are vulnerable to [CVE-2016-10033](https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-10033) a remote code execution vulnerability, responsibly reported by [Dawid Golunski](https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html).

 PHPMailer versions prior to 5.2.14 (released November 2015) are vulnerable to [CVE-2015-8476](https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8476) an SMTP CRLF injection bug permitting arbitrary message sending.

--- a/UPGRADING.md
+++ b/UPGRADING.md
@ -38,7 +38,7 @@ require 'src/Exception.php';
 ```

 ## Namespace
-PHPMailer 6 uses a [namespace](http://php.net/manual/en/language.namespaces.rationale.php) of `PHPMailer\PHPMailer`, because it's the PHPMailer project within the PHPMailer organisation. You **must** import (with a `use` statement) classes you're using explicitly into your own namespace, or reference them absolutely in the global namespace - all the examples do this. This means the fully-qualified name of the main PHPMailer class is `PHPMailer\PHPMailer\PHPMailer`, which is a bit of a mouthful, but there's no harm in it! If you are using other PHPMailer classes explicitly (such as `SMTP` or `Exception`), you will need to import them into your namespace too.
+PHPMailer 6 uses a [namespace](https://www.php.net/manual/en/language.namespaces.rationale.php) of `PHPMailer\PHPMailer`, because it's the PHPMailer project within the PHPMailer organisation. You **must** import (with a `use` statement) classes you're using explicitly into your own namespace, or reference them absolutely in the global namespace - all the examples do this. This means the fully-qualified name of the main PHPMailer class is `PHPMailer\PHPMailer\PHPMailer`, which is a bit of a mouthful, but there's no harm in it! If you are using other PHPMailer classes explicitly (such as `SMTP` or `Exception`), you will need to import them into your namespace too.

 For example you might create an instance like this:

@ -91,7 +91,7 @@ try {
 ```

 ## OAuth2 Support
-The OAuth2 implementation has been completely redesigned using the [OAuth2 packages](http://oauth2-client.thephpleague.com) from the [League of extraordinary packages](http://thephpleague.com), providing support for many more OAuth services, and you'll need to update your code if you were using OAuth in 5.2. See [the examples](https://github.com/PHPMailer/PHPMailer/tree/master/examples) and documentation in the [PHPMailer wiki](https://github.com/PHPMailer/PHPMailer/wiki).
+The OAuth2 implementation has been completely redesigned using the [OAuth2 packages](https://oauth2-client.thephpleague.com) from the [League of extraordinary packages](https://thephpleague.com), providing support for many more OAuth services, and you'll need to update your code if you were using OAuth in 5.2. See [the examples](https://github.com/PHPMailer/PHPMailer/tree/master/examples) and documentation in the [PHPMailer wiki](https://github.com/PHPMailer/PHPMailer/wiki).

 ## Extras
 Additional classes previously bundled in the `Extras` folder (such as htmlfilter and EasyPeasyICS) have been removed - use equivalent packages from [packagist.org](https://packagist.org) instead.
--- a/changelog.md
+++ b/changelog.md
@ -886,7 +886,7 @@ NOTE: will NOT work with PHP5 in E_STRICT error mode
 ## Version 1.73 (Sun, Jun 10 2005)
 * Fixed denial of service bug: http://www.cybsec.com/vuln/PHPMailer-DOS.pdf
 * Now has a total of 20 translations
-* Fixed alt attachments bug: http://tinyurl.com/98u9k
+* Fixed alt attachments bug: https://sourceforge.net/p/phpmailer/bugs/120/

 ## Version 1.72 (Wed, May 25 2004)
 * Added Dutch, Swedish, Czech, Norwegian, and Turkish translations.
@ -1003,7 +1003,7 @@ NOTE: will NOT work with PHP5 in E_STRICT error mode
 ## Version 1.19 (Thu, Jun 21 2001)
 * Fixed MS Mail header bug
 * Added fix for Bcc problem with mail(). *Does not work on Win32*
-  (See PHP bug report: http://www.php.net/bugs.php?id=11616)
+  (See PHP bug report: https://bugs.php.net/bug.php?id=11616
 * mail() no longer passes a fifth parameter when not needed

 ## Version 1.15 (Fri, Jun 15 2001)
--- a/examples/DKIM_sign.phps
+++ b/examples/DKIM_sign.phps
@ -2,7 +2,7 @@

 /**
 * This example shows sending a DKIM-signed message with PHPMailer.
- * More info about DKIM can be found here: http://www.dkim.org/info/dkim-faq.html
+ * More info about DKIM can be found here: https://www.dkim.org/info/dkim-faq.html
 * There's more to using DKIM than just this code - check out this article:
 * @see https://yomotherboard.com/how-to-setup-email-server-dkim-keys/
 * See also the DKIM_gen_keys example code in the examples folder,
--- a/examples/README.md
+++ b/examples/README.md
@ -8,15 +8,15 @@ This folder contains a collection of examples of using [PHPMailer](https://githu
 When working on email sending code you'll find yourself worrying about what might happen if all these test emails got sent to your mailing list. The solution is to use a fake mail server, one that acts just like the real thing, but just doesn't actually send anything out. Some offer web interfaces, feedback, logging, the ability to return specific error codes, all things that are useful for testing error handling, authentication etc. Here's a selection of mail testing tools you might like to try:

 *   [FakeEmail](https://github.com/tomwardill/FakeEmail), a Python-based fake mail server with a web interface.
-*   [smtp-sink](http://www.postfix.org/smtp-sink.1.html), part of the Postfix mail server, so you may have this installed already. This is used in the GitHub actions configuration to run PHPMailer's unit tests.
+*   [smtp-sink](https://www.postfix.org/smtp-sink.1.html), part of the Postfix mail server, so you may have this installed already. This is used in the GitHub actions configuration to run PHPMailer's unit tests.
 *   [smtp4dev](https://github.com/rnwood/smtp4dev), a dummy SMTP server for Windows and Linux.
 *   [fakesendmail.sh](https://github.com/PHPMailer/PHPMailer/blob/master/test/fakesendmail.sh), part of PHPMailer's test setup, this is a shell script that emulates sendmail for testing 'mail' or 'sendmail' methods in PHPMailer.
 *   [HELO](https://usehelo.com), a very nice (commercial) mail server desktop app from BeyondCode, and [how to set it up for local testing](https://usehelo.com/blog/how-to-use-helo-with-phps-mail-function).
-*   [msglint](http://tools.ietf.org/tools/msglint/), not a mail server, the IETF's MIME structure analyser checks the formatting of your messages.
+*   [msglint](https://www.splitbrain.org/_static/msglint/), not a mail server, the IETF's MIME structure analyser checks the formatting of your messages.
 *   [MailHog](https://github.com/les-enovateurs/mailhog-examples), a Go-based email testing tool for developers with a web interface. You can use it with Docker and GitHub Actions to test your mails. The repository also contains a small part of PHPMailer's setup.
 *   [aboutmy.email](https://aboutmy.email), a service for evaluating your email config – SPF, DKIM, DMARC, and compliance with list-unsubscribe, TLS, and many other settings.

-Most of these examples use the `example.com` and `example.net` domains. These domains are reserved by IANA for illustrative purposes, as documented in [RFC 2606](http://tools.ietf.org/html/rfc2606). Don't use made-up domains like 'mydomain.com' or 'somedomain.com' in examples as someone, somewhere, probably owns them!
+Most of these examples use the `example.com` and `example.net` domains. These domains are reserved by IANA for illustrative purposes, as documented in [RFC 2606](https://www.rfc-editor.org/rfc/rfc2606). Don't use made-up domains like 'mydomain.com' or 'somedomain.com' in examples as someone, somewhere, probably owns them!

 ## Security note
 Before running these examples in a web server, you'll need to rename them with '.php' extensions. They are supplied as '.phps' files which will usually be displayed with syntax highlighting by PHP instead of running them. This prevents potential security issues with running potential spam-gateway code if you happen to deploy these code examples on a live site - _please don't do that!_
--- a/examples/send_file_upload.phps
+++ b/examples/send_file_upload.phps
@ -13,7 +13,7 @@ $msg = '';
 if (array_key_exists('userfile', $_FILES)) {
    //First handle the upload
    //Don't trust provided filename - same goes for MIME types
-    //See http://php.net/manual/en/features.file-upload.php#114004 for more thorough upload validation
+    //See https://www.php.net/manual/en/features.file-upload.php#114004 for more thorough upload validation
    //Extract an extension from the provided filename
    $ext = PHPMailer::mb_pathinfo($_FILES['userfile']['name'], PATHINFO_EXTENSION);
    //Define a safe location to move the uploaded file to, preserving the extension
@ -57,4 +57,4 @@ if (array_key_exists('userfile', $_FILES)) {
    echo htmlspecialchars($msg);
 } ?>
 </body>
-</html>
+</html>
--- a/examples/smime_signed_mail.phps
+++ b/examples/smime_signed_mail.phps
@ -9,7 +9,7 @@
 * STEP 1 - Creating a certificate:
 * You can either use a self-signed certificate, pay for a signed one,
 * or use free alternatives such as StartSSL, Comodo etc.
- * Check out this link for more providers: http://kb.mozillazine.org/Getting_an_SMIME_certificate
+ * Check out this link for more providers: https://kb.mozillazine.org/Getting_an_SMIME_certificate
 * In this example I am using Comodo.
 * The form is directly available via https://secure.comodo.com/products/frontpage?area=SecureEmailCertificate
 * Fill it out and you'll get an email with a link to download your certificate.
--- a/get_oauth_token.php
+++ b/get_oauth_token.php
@ -12,7 +12,7 @@
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
- * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 * @note This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
@ -36,7 +36,7 @@ namespace PHPMailer\PHPMailer;
 * Aliases for League Provider Classes
 * Make sure you have added these to your composer.json and run `composer install`
 * Plenty to choose from here:
- * @see http://oauth2-client.thephpleague.com/providers/thirdparty/
+ * @see https://oauth2-client.thephpleague.com/providers/thirdparty/
 */
 //@see https://github.com/thephpleague/oauth2-google
 use League\OAuth2\Client\Provider\Google;
--- a/language/phpmailer.lang-fr.php
+++ b/language/phpmailer.lang-fr.php
@ -6,7 +6,6 @@
 * Some French punctuation requires a thin non-breaking space (U+202F) character before it,
 * for example before a colon or exclamation mark.
 * There is one of these characters between these quotes: " "
- * @see http://unicode.org/udhr/n/notes_fra.html
 */

 $PHPMAILER_LANG['authenticate']         = 'Erreur SMTP : échec de l’authentification.';
--- a/language/phpmailer.lang-ja.php
+++ b/language/phpmailer.lang-ja.php
@ -3,7 +3,7 @@
 /**
 * Japanese PHPMailer language file: refer to English translation for definitive list
 * @package PHPMailer
- * @author Mitsuhiro Yoshida <http://mitstek.com/>
+ * @author Mitsuhiro Yoshida <https://mitstek.com>
 * @author Yoshi Sakai <http://bluemooninc.jp/>
 * @author Arisophy <https://github.com/arisophy/>
 */
--- a/src/DSNConfigurator.php
+++ b/src/DSNConfigurator.php
@ -13,7 +13,7 @@
 * @copyright 2012 - 2023 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 * @note      This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
--- a/src/Exception.php
+++ b/src/Exception.php
@ -13,7 +13,7 @@
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 * @note      This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
--- a/src/OAuth.php
+++ b/src/OAuth.php
@ -13,7 +13,7 @@
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 * @note      This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
@ -29,7 +29,7 @@ use League\OAuth2\Client\Token\AccessToken;
 * OAuth - OAuth2 authentication wrapper class.
 * Uses the oauth2-client package from the League of Extraordinary Packages.
 *
- * @see     http://oauth2-client.thephpleague.com
+ * @see     https://oauth2-client.thephpleague.com
 *
 * @author  Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
 */
--- a/src/OAuthTokenProvider.php
+++ b/src/OAuthTokenProvider.php
@ -13,7 +13,7 @@
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 * @note      This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
--- a/src/PHPMailer.php
+++ b/src/PHPMailer.php
@ -13,7 +13,7 @@
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 * @note      This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
@ -152,8 +152,7 @@ class PHPMailer
     * Only supported in simple alt or alt_inline message types
     * To generate iCal event structures, use classes like EasyPeasyICS or iCalcreator.
     *
-     * @see http://sprain.ch/blog/downloads/php-class-easypeasyics-create-ical-files-with-php/
-     * @see http://kigkonsult.se/iCalcreator/
+     * @see https://kigkonsult.se/iCalcreator/
     *
     * @var string
     */
@ -468,7 +467,7 @@ class PHPMailer
     * Only applicable when sending via SMTP.
     *
     * @see https://en.wikipedia.org/wiki/Variable_envelope_return_path
-     * @see http://www.postfix.org/VERP_README.html Postfix VERP info
+     * @see https://www.postfix.org/VERP_README.html Postfix VERP info
     *
     * @var bool
     */
@ -551,10 +550,10 @@ class PHPMailer
     * The function that handles the result of the send email action.
     * It is called out by send() for each email sent.
     *
-     * Value can be any php callable: http://www.php.net/is_callable
+     * Value can be any php callable: https://www.php.net/is_callable
     *
     * Parameters:
-     *   bool $result        result of the send action
+     *   bool $result           result of the send action
     *   array   $to            email addresses of the recipients
     *   array   $cc            cc email addresses
     *   array   $bcc           bcc email addresses
@ -1212,7 +1211,7 @@ class PHPMailer
     * Uses the imap_rfc822_parse_adrlist function if the IMAP extension is available.
     * Note that quotes in the name part are removed.
     *
-     * @see http://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation
+     * @see https://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation
     *
     * @param string $addrstr The address list string
     * @param bool   $useimap Whether to use the IMAP extension to parse the list
@ -1407,7 +1406,6 @@ class PHPMailer
                 *  * IPv6 literals: 'first.last@[IPv6:a1::]'
                 * Not all of these will necessarily work for sending!
                 *
-                 * @see       http://squiloople.com/2009/12/20/email-address-validation/
                 * @copyright 2009-2010 Michael Rushton
                 * Feel free to use and redistribute this code. But please keep this copyright notice.
                 */
@ -1734,9 +1732,8 @@ class PHPMailer
        //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver
        //A space after `-f` is optional, but there is a long history of its presence
        //causing problems, so we don't use one
-        //Exim docs: http://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html
-        //Sendmail docs: http://www.sendmail.org/~ca/email/man/sendmail.html
-        //Qmail docs: http://www.qmail.org/man/man8/qmail-inject.html
+        //Exim docs: https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html
+        //Sendmail docs: https://www.sendmail.org/~ca/email/man/sendmail.html
        //Example problem: https://www.drupal.org/node/1057954

        //PHP 5.6 workaround
@ -1901,7 +1898,7 @@ class PHPMailer
    /**
     * Send mail using the PHP mail() function.
     *
-     * @see http://www.php.net/manual/en/book.mail.php
+     * @see https://www.php.net/manual/en/book.mail.php
     *
     * @param string $header The message headers
     * @param string $body   The message body
@ -1931,9 +1928,8 @@ class PHPMailer
        //This sets the SMTP envelope sender which gets turned into a return-path header by the receiver
        //A space after `-f` is optional, but there is a long history of its presence
        //causing problems, so we don't use one
-        //Exim docs: http://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html
-        //Sendmail docs: http://www.sendmail.org/~ca/email/man/sendmail.html
-        //Qmail docs: http://www.qmail.org/man/man8/qmail-inject.html
+        //Exim docs: https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_exim_command_line.html
+        //Sendmail docs: https://www.sendmail.org/~ca/email/man/sendmail.html
        //Example problem: https://www.drupal.org/node/1057954
        //CVE-2016-10033, CVE-2016-10045: Don't pass -f if characters will be escaped.

@ -3634,7 +3630,7 @@ class PHPMailer
     * without breaking lines within a character.
     * Adapted from a function by paravoid.
     *
-     * @see http://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283
+     * @see https://www.php.net/manual/en/function.mb-encode-mimeheader.php#60283
     *
     * @param string $str       multi-byte text to wrap encode
     * @param string $linebreak string to use as linefeed/end-of-line
@ -3690,7 +3686,7 @@ class PHPMailer
    /**
     * Encode a string using Q encoding.
     *
-     * @see http://tools.ietf.org/html/rfc2047#section-4.2
+     * @see https://www.rfc-editor.org/rfc/rfc2047#section-4.2
     *
     * @param string $str      the text to encode
     * @param string $position Where the text is going to be used, see the RFC for what that means
@ -4267,8 +4263,8 @@ class PHPMailer
            //Is it a valid IPv4 address?
            return filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) !== false;
        }
-        //Is it a syntactically valid hostname (when embeded in a URL)?
-        return filter_var('http://' . $host, FILTER_VALIDATE_URL) !== false;
+        //Is it a syntactically valid hostname (when embedded in a URL)?
+        return filter_var('https://' . $host, FILTER_VALIDATE_URL) !== false;
    }

    /**
@ -4679,7 +4675,7 @@ class PHPMailer
     * Multi-byte-safe pathinfo replacement.
     * Drop-in replacement for pathinfo(), but multibyte- and cross-platform-safe.
     *
-     * @see http://www.php.net/manual/en/function.pathinfo.php#107461
+     * @see https://www.php.net/manual/en/function.pathinfo.php#107461
     *
     * @param string     $path    A filename or path, does not need to exist as a file
     * @param int|string $options Either a PATHINFO_* constant,
--- a/src/POP3.php
+++ b/src/POP3.php
@ -13,7 +13,7 @@
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 * @note      This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
--- a/src/SMTP.php
+++ b/src/SMTP.php
@ -13,7 +13,7 @@
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2010 - 2012 Jim Jagielski
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 * @note      This program is distributed in the hope that it will be useful - WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
@ -152,8 +152,8 @@ class SMTP
    /**
     * Whether to use VERP.
     *
-     * @see http://en.wikipedia.org/wiki/Variable_envelope_return_path
-     * @see http://www.postfix.org/VERP_README.html Info on VERP
+     * @see https://en.wikipedia.org/wiki/Variable_envelope_return_path
+     * @see https://www.postfix.org/VERP_README.html Info on VERP
     *
     * @var bool
     */
@ -164,7 +164,7 @@ class SMTP
     * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2.
     * This needs to be quite high to function correctly with hosts using greetdelay as an anti-spam measure.
     *
-     * @see http://tools.ietf.org/html/rfc2821#section-4.5.3.2
+     * @see https://www.rfc-editor.org/rfc/rfc2821#section-4.5.3.2
     *
     * @var int
     */
@ -648,7 +648,7 @@ class SMTP
        }

        //The following borrowed from
-        //http://php.net/manual/en/function.mhash.php#27225
+        //https://www.php.net/manual/en/function.mhash.php#27225

        //RFC 2104 HMAC implementation for php.
        //Creates an md5 HMAC.
--- a/test/DebugLogTestListener.php
+++ b/test/DebugLogTestListener.php
@ -11,7 +11,7 @@
 * @copyright 2010 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
 * @copyright 2020 Juliette Reinders Folmer
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test;
--- a/test/Language/TranslationCompletenessTest.php
+++ b/test/Language/TranslationCompletenessTest.php
@ -9,7 +9,7 @@
 * @author    Andy Prevost
 * @copyright 2010 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\Language;
--- a/test/OAuth/OAuthTest.php
+++ b/test/OAuth/OAuthTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\OAuth;
--- a/test/PHPMailer/AddEmbeddedImageTest.php
+++ b/test/PHPMailer/AddEmbeddedImageTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/AddStringAttachmentTest.php
+++ b/test/PHPMailer/AddStringAttachmentTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/AddStringEmbeddedImageTest.php
+++ b/test/PHPMailer/AddStringEmbeddedImageTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/AddrFormatTest.php
+++ b/test/PHPMailer/AddrFormatTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/AuthCRAMMD5Test.php
+++ b/test/PHPMailer/AuthCRAMMD5Test.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/CustomHeaderTest.php
+++ b/test/PHPMailer/CustomHeaderTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/DKIMTest.php
+++ b/test/PHPMailer/DKIMTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/DSNConfiguratorTest.php
+++ b/test/PHPMailer/DSNConfiguratorTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/EncodeQTest.php
+++ b/test/PHPMailer/EncodeQTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/EncodeStringTest.php
+++ b/test/PHPMailer/EncodeStringTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/FileIsAccessibleTest.php
+++ b/test/PHPMailer/FileIsAccessibleTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/FilenameToTypeTest.php
+++ b/test/PHPMailer/FilenameToTypeTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/GenerateIdTest.php
+++ b/test/PHPMailer/GenerateIdTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/GetLastMessageIDTest.php
+++ b/test/PHPMailer/GetLastMessageIDTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/HasLineLongerThanMaxTest.php
+++ b/test/PHPMailer/HasLineLongerThanMaxTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/Html2TextTest.php
+++ b/test/PHPMailer/Html2TextTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
@ -87,8 +87,8 @@ material is wood',
    <body>
        <h1>PHPMailer does HTML!</h1>
        <p>This is a <strong>test message</strong> written in HTML.<br>
-        Go to <a href="http://code.google.com/a/apache-extras.org/p/phpmailer/">
-        http://code.google.com/a/apache-extras.org/p/phpmailer/</a>
+        Go to <a href="https://github.com/PHPMailer/PHPMailer">
+        https://github.com/PHPMailer/PHPMailer</a>
        for new versions of PHPMailer.</p>
        <p>Thank you!</p>
    </body>
@ -100,8 +100,8 @@ EOT
                'expected' => <<<EOT
 PHPMailer does HTML!
        This is a test message written in HTML.
-        Go to 
-        http://code.google.com/a/apache-extras.org/p/phpmailer/
+        Go to
+        https://github.com/PHPMailer/PHPMailer
        for new versions of PHPMailer.
        Thank you!
 EOT
@ -132,14 +132,14 @@ EOT
            'HTML with a "less than" sign in the text' => [
                'input'    => '<p><span style="color: #ff0000; background-color: #000000;">Complex</span> '
                    . '<span style="font-family: impact,chicago;">text <50% </span> '
-                    . '<a href="http://exempledomain.com/"><em>with</em></a> '
+                    . '<a href="https://example.com/"><em>with</em></a> '
                    . '<span style="font-size: 36pt;"><strong>tags</strong></span></p>',
                'expected' => 'Complex text',
            ],
            'HTML with an encoded "less than" sign in the text' => [
                'input'    => '<p><span style="color: #ff0000; background-color: #000000;">Complex</span> '
                    . '<span style="font-family: impact,chicago;">text &lt;50% </span> '
-                    . '<a href="http://exempledomain.com/"><em>with</em></a> '
+                    . '<a href="https://example.com/"><em>with</em></a> '
                    . '<span style="font-size: 36pt;"><strong>tags</strong></span></p>',
                'expected' => 'Complex text <50%  with tags',
            ],
--- a/test/PHPMailer/ICalTest.php
+++ b/test/PHPMailer/ICalTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/IsPermittedPathTest.php
+++ b/test/PHPMailer/IsPermittedPathTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/IsValidHostTest.php
+++ b/test/PHPMailer/IsValidHostTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/LocalizationTest.php
+++ b/test/PHPMailer/LocalizationTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
@ -262,7 +262,7 @@ final class LocalizationTest extends TestCase
            ],
            'Custom path: not a local/permitted path' => [
                'langCode' => 'xx', // Unassigned lang code.
-                'langPath' => 'http://example.com/files/',
+                'langPath' => 'https://example.com/files/',
            ],
            'Custom path: path traversal' => [
                'langCode' => 'xx', // Unassigned lang code.
--- a/test/PHPMailer/MailTransportTest.php
+++ b/test/PHPMailer/MailTransportTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/MbPathinfoTest.php
+++ b/test/PHPMailer/MbPathinfoTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/MimeTypesTest.php
+++ b/test/PHPMailer/MimeTypesTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/NormalizeBreaksTest.php
+++ b/test/PHPMailer/NormalizeBreaksTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/PHPMailerTest.php
+++ b/test/PHPMailer/PHPMailerTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
@ -472,7 +472,7 @@ EOT;
        //Make sure phar paths are rejected
        self::assertFalse($this->Mail->addAttachment('phar://pharfile.php', 'pharfile.php'));
        //Make sure any path that looks URLish is rejected
-        self::assertFalse($this->Mail->addAttachment('http://example.com/test.php', 'test.php'));
+        self::assertFalse($this->Mail->addAttachment('https://example.com/test.php', 'test.php'));
        self::assertFalse(
            $this->Mail->addAttachment(
                'ssh2.sftp://user:pass@attacker-controlled.example.com:22/tmp/payload.phar',
--- a/test/PHPMailer/ParseAddressesTest.php
+++ b/test/PHPMailer/ParseAddressesTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/PunyencodeAddressTest.php
+++ b/test/PHPMailer/PunyencodeAddressTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/QuotedStringTest.php
+++ b/test/PHPMailer/QuotedStringTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/ReplyToGetSetClearTest.php
+++ b/test/PHPMailer/ReplyToGetSetClearTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/SetErrorTest.php
+++ b/test/PHPMailer/SetErrorTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/SetFromTest.php
+++ b/test/PHPMailer/SetFromTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/SetTest.php
+++ b/test/PHPMailer/SetTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/SetWordWrapTest.php
+++ b/test/PHPMailer/SetWordWrapTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/Utf8CharBoundaryTest.php
+++ b/test/PHPMailer/Utf8CharBoundaryTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/ValidateAddressCustomValidatorTest.php
+++ b/test/PHPMailer/ValidateAddressCustomValidatorTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/ValidateAddressTest.php
+++ b/test/PHPMailer/ValidateAddressTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
@ -19,8 +19,6 @@ use Yoast\PHPUnitPolyfills\TestCases\TestCase;
 /**
 * Test email address validation.
 *
- * Test addresses obtained from {@link http://isemail.info}.
- *
 * @todo Recommendation JRF: Rework the tests to actually test all test cases
 *       against each type of build-in pattern.
 *       As things stand, only the PHP validation is tested (while it shouldn't be as that's
--- a/test/PHPMailer/WrapTextTest.php
+++ b/test/PHPMailer/WrapTextTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/PHPMailer/XMailerTest.php
+++ b/test/PHPMailer/XMailerTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\PHPMailer;
--- a/test/POP3/PopBeforeSmtpTest.php
+++ b/test/POP3/PopBeforeSmtpTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\POP3;
--- a/test/PreSendTestCase.php
+++ b/test/PreSendTestCase.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test;
--- a/test/Security/DenialOfServiceVectorsTest.php
+++ b/test/Security/DenialOfServiceVectorsTest.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test\Security;
@ -24,8 +24,6 @@ final class DenialOfServiceVectorsTest extends SendTestCase
 {
    /**
     * Test this denial of service attack.
-     *
-     * @link http://www.cybsec.com/vuln/PHPMailer-DOS.pdf
     */
    public function testDenialOfServiceAttack1()
    {
--- a/test/SendTestCase.php
+++ b/test/SendTestCase.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test;
--- a/test/TestCase.php
+++ b/test/TestCase.php
@ -8,7 +8,7 @@
 * @author    Andy Prevost
 * @copyright 2012 - 2020 Marcus Bointon
 * @copyright 2004 - 2009 Andy Prevost
- * @license   http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @license   https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html GNU Lesser General Public License
 */

 namespace PHPMailer\Test;
--- a/test/fakepopserver.sh
+++ b/test/fakepopserver.sh
@ -3,13 +3,13 @@
 # Fake POP3 server
 # By Marcus Bointon <phpmailer@synchromedia.co.uk>
 # Copyright 2010 - 2020 Marcus Bointon
-# Based on code by 'Frater' found at http://www.linuxquestions.org/questions/programming-9/fake-pop3-server-to-capture-pop3-passwords-933733
+# Based on code by 'Frater' found at https://www.linuxquestions.org/questions/programming-9/fake-pop3-server-to-capture-pop3-passwords-933733/
 # Does not actually serve any mail, but supports commands sufficient to test POP-before SMTP
 # Can be run directly from a shell like this:
 # mkfifo fifo; nc -l 1100 <fifo |./fakepopserver.sh >fifo; rm fifo
 # It will accept any user name and will return a positive response for the password 'test'

-# Licensed under the GNU Lesser General Public License: http://www.gnu.org/copyleft/lesser.html
+# Licensed under the GNU Lesser General Public License: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html

 # Enable debug output
 #set -xv
--- a/test/runfakepopserver.sh
+++ b/test/runfakepopserver.sh
@ -3,7 +3,6 @@
 set -xv

 # Run the fake pop server from bash
-# Idea from http://blog.ale-re.net/2007/09/ipersimple-remote-shell-with-netcat.html
 # Defaults to port 1100 so it can be run by unpriv users and not clash with a real server
 # Optionally, pass in a port number as the first arg