Swift is a library for sending email messages from
PHP Web sites and
applications. It does not rely on PHP's native
mail() function (which
is known for using high server resources when
sending multiple email
messages). Instead, it communicates directly with
an SMTP server or an
MTA binary to send mail quickly and efficiently.
It features custom
headers, multiple encoding options, TLS support,
embedded images,
building and sending multipart messages, fast Cc
and Bcc handling,
batching messages with or without multiple "To"s,
support for multiple
attachments, setting message priorities,
requesting read receipts,
pluggable SMTP Authentication (LOGIN, PLAIN,
MD5-CRAM, POP Before SMTP),
anti-flooding support (reconnect every X email
messages ), secure Socket
Layer connections (SSL), and loadable plugin
support with event handling
features.
