Tyler Romeo:
https://www.mediawiki.org/wiki/Talk:Requests_for_comment/Third-party_components
Swift_Mailer seems to be lot robust than PHP MailUser. "PHPMailer has everything packed into a few classes, whereas Swift_Mailer actually has a separation of concerns, with classes for attachments, transport types, etc. A result of this is that PHPMailer has two different functions for embedding multimedia: addEmbeddedImage() for files and addStringEmbeddedImage() for strings. Another example is that PHPMailer supports only two bodies for multipart messages, whereas Swift_Mailer will add in as many bodies as you tell it to since a body is wrapped in its own object. In addition, PHPMailer only really supports SMTP, whereas Swift_Mailer has an extensible transport architecture, and multiple transport providers. (And there's also plugins, and monolog integration, etc.)
Version: 1.23.0
Severity: enhancement
URL: https://www.mediawiki.org/wiki/Thread:User_talk:Parent5446/Swift_Mailer_and_VERP
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=66110