Setup:
* automatic adaptation to your UNIX variant---no configuration needed
* AIX, BSD/OS, FreeBSD, HP/UX, Irix, Linux, OSF/1, SunOS, Solaris, and more
-* automatic per-host configuration (qmail-config)
+* automatic per-host configuration (config, config-fast)
* quick installation---no big list of decisions to make
Security:
Message construction (qmail-inject):
* RFC 822, RFC 1123
* full support for address groups
-* automatic conversion of old-style headers to RFC 822 format
+* automatic conversion of old-style address lists to RFC 822 format
+* sendmail hook for compatibility with current user agents
* header line length limited only by memory
* host masquerading (control/defaulthost)
-* user masquerading (MAILUSER, MAILHOST)
-* sendmail hook for compatibility with current user agents
+* user masquerading ($MAILUSER, $MAILHOST)
+* automatic Mail-Followup-To creation ($QMAILMFTFILE)
SMTP service (qmail-smtpd):
* RFC 821, RFC 1123, RFC 1651, RFC 1652, RFC 1854
Forwarding and mailing lists (qmail-local):
* address wildcards (.qmail-default, .qmail-foo-default, etc.)
-* sendmail/smail /etc/aliases compatibility (qmsmac, available separately)
+* sendmail .forward compatibility (dot-forward, available separately)
+* fast forwarding databases (fastforward, available separately)
+* sendmail /etc/aliases compatibility (fastforward/newaliases)
* mailing list owners---automatically divert bounces and vacation messages
* VERPs---automatic recipient identification for mailing list bounces
* Delivered-To---automatic loop prevention, even across hosts
-* automatic subscription management (qlist)
+* automatic mailing list management (ezmlm, available separately)
Local delivery (qmail-local):
* user-controlled address hierarchy---fred controls fred-anything
* user-controlled program delivery: procmail etc. (qmail-command)
* optional new-mail notification (qbiff)
* optional NRUDT return receipts (qreceipt)
-* conditional filtering (condredirect)
+* conditional filtering (condredirect, bouncesaying)
POP3 service (qmail-popup, qmail-pop3d):
* RFC 1939