Swift Mailer is a feature-rich PHP mailer library for sending e-mails from PHP websites and applications.

Mail IconIt does not rely on PHP’s native mail() class which consumes high resources. Instead, Swift communicates directly with an SMTP server or a MTA binary to send mail quickly and efficiently.

Swift supports event-driven plugins which offer you the opportunity to really take control of the library and set this mailer apart from everything else that’s out there. 

Some features of Swift Mailer:

  • Persistent connectivity improves performance
  • Internationalization support (i18n)
  • Load balancing and/or throttling support
  • SSL & TLS Support – for Gmail servers
  • Embedded images or other file types
  • Full MIME 1.0 library included (create multipart messages, attachments etc)
  • Batch mail processing
  • Send attachments of any size even with PHP’s 8MB Memory Limit
  • Support for multiple attachments
  • Lossless protection against header injection (encode, don’t strip)
  • Set message priority
  • Request read receipts
  • Pluggable SMTP authentication (LOGIN, PLAIN, MD5-CRAM, POP Before SMTP)
  • Anti-flooding support for servers with limits on emails-per-connection
  • Bandwidth monitor included
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