WordPress/wp-includes/PHPMailer
Sergey Biryukov 4fa46b8d14 External Libraries: Upgrade PHPMailer from 6.3.0 to 6.4.0.
6.4.0 reverts a change that made the `mail()` and sendmail transports set the envelope sender if one isn't explicitly provided, as it was causing problems in specific PHP/server configurations.

Release post: https://github.com/PHPMailer/PHPMailer/releases/tag/v6.4.0
Changelog: https://github.com/PHPMailer/PHPMailer/compare/v6.3.0...v6.4.0

Props Synchro, tigertech, ayeshrajans, galbaras, audrasjb, SergeyBiryukov, desrosj, ocean90.
Merges [50628] to the 5.7 branch.
Fixes #52822.
Built from https://develop.svn.wordpress.org/branches/5.7@50630


git-svn-id: http://core.svn.wordpress.org/branches/5.7@50242 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2021-04-01 13:01:06 +00:00
..
Exception.php External Libraries: Upgrade PHPMailer to version 6.2.0. 2020-11-30 17:10:05 +00:00
PHPMailer.php External Libraries: Upgrade PHPMailer from 6.3.0 to 6.4.0. 2021-04-01 13:01:06 +00:00
SMTP.php External Libraries: Upgrade PHPMailer from 6.3.0 to 6.4.0. 2021-04-01 13:01:06 +00:00