1Postfix attempts to be fast, easy to administer, and secure, while at the same
2time being sendmail compatible enough to not upset existing users. Thus, the
3outside has a sendmail-ish flavor, but the inside is completely different.
4
5Some features:
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7Connection cache for SMTP, DSN status notifications, IP version 6, Plug-in
8support for multiple SASL implementations (Cyrus, Dovecot), TLS encryption and
9authentication, Configurable status notification message text, Access control
10per client/sender/recipient/etc, Content filter (built-in, external before
11queue, external after queue), Berkeley DB database, LDAP database, MySQL
12database, PostgreSQL database, Maildir and mailbox format, Virtual domains,
13VERP envelope return addresses and others.
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