diff options
Diffstat (limited to 'BLURB3')
| -rw-r--r-- | BLURB3 | 93 |
1 files changed, 93 insertions, 0 deletions
@@ -0,0 +1,93 @@ +Here are some of qmail's features. + +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 (config, config-fast) +* quick installation---no big list of decisions to make + +Security: +* clear separation between addresses, files, and programs +* minimization of setuid code (qmail-queue) +* minimization of root code (qmail-start, qmail-lspawn) +* five-way trust partitioning---security in depth +* optional logging of one-way hashes, entire contents, etc. (QUEUE_EXTRA) + +Message construction (qmail-inject): +* RFC 822, RFC 1123 +* full support for address groups +* 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, $MAILHOST) +* automatic Mail-Followup-To creation ($QMAILMFTFILE) + +SMTP service (qmail-smtpd): +* RFC 821, RFC 1123, RFC 1651, RFC 1652, RFC 1854 +* 8-bit clean +* 931/1413/ident/TAP callback (tcp-env) +* relay control---stop unauthorized relaying by outsiders (control/rcpthosts) +* no interference between relay control and forwarding +* tcpd hook---reject SMTP connections from known abusers +* automatic recognition of local IP addresses +* per-buffer timeouts +* hop counting + +Queue management (qmail-send): +* instant handling of messages added to queue +* parallelism limit (control/concurrencyremote, control/concurrencylocal) +* split queue directory---no slowdown when queue gets big +* quadratic retry schedule---old messages tried less often +* independent message retry schedules +* automatic safe queueing---no loss of mail if system crashes +* automatic per-recipient checkpointing +* automatic queue cleanups (qmail-clean) +* queue viewing (qmail-qread) +* detailed delivery statistics (qmailanalog, available separately) + +Bounces (qmail-send): +* QSBMF bounce messages---both machine-readable and human-readable +* HCMSSC support---language-independent RFC 1893 error codes +* double bounces sent to postmaster + +Routing by domain (qmail-send): +* any number of names for local host (control/locals) +* any number of virtual domains (control/virtualdomains) +* domain wildcards (control/virtualdomains) +* configurable percent hack support (control/percenthack) +* UUCP hook + +SMTP delivery (qmail-remote): +* RFC 821, RFC 974, RFC 1123 +* 8-bit clean +* automatic downed host backoffs +* artificial routing---smarthost, localnet, mailertable (control/smtproutes) +* per-buffer timeouts +* passive SMTP queue---perfect for SLIP/PPP (serialmail, available separately) + +Forwarding and mailing lists (qmail-local): +* address wildcards (.qmail-default, .qmail-foo-default, etc.) +* 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 mailing list management (ezmlm, available separately) + +Local delivery (qmail-local): +* user-controlled address hierarchy---fred controls fred-anything +* mbox delivery +* reliable NFS delivery (maildir) +* user-controlled program delivery: procmail etc. (qmail-command) +* optional new-mail notification (qbiff) +* optional NRUDT return receipts (qreceipt) +* conditional filtering (condredirect, bouncesaying) + +POP3 service (qmail-popup, qmail-pop3d): +* RFC 1939 +* UIDL support +* TOP support +* APOP hook +* modular password checking (checkpassword, available separately) |