Jan Kasprzak enscribed thusly:
> Denis Voitenko wrote:
> : What are the advantages (disadvantages) of using qmail instead of sendmail?
> : I was very surprised to find out that there is an alternative to sendmail.
There are numerous alternatives to sendmail including:
smail3 (A good alternative)
mmdf (Yes this sucker is still around)
QMail (which you mentioned)
postfix (reputedly every bit as fast as QMail but far more robust)
and more...
> :
> There is a FAQ at www.qmail.org.
> I don't want to start a MTA flame war, but in short.
> qmail: security, speed, modularity
qmail: obtuse code, difficult to debug, requires special utilities
to work on spool files, binary data in spool files, spool
file names linked to inode numbers, random brain farts,
poor error recovery, some non-compliance to RFC's, obstinant
author who refuses to recognize when he has a bug (from
personal experience).
> sendmail: rewriting rules, widespread use (I think)
sendmail: Highly versatile, fairly bullet proof (now), good long term
track record (with a spotty distant past), good build in
anti-spam provisions, unfortunately slow, use to be obtuse
to configure (m4 configuration is a snap now), is a large
monolithic program, author and supported by highly
responsive well respected people, familiarity by a large
body of internet lurkers (white hat and black hat).
> I run a qmail with ezmlm list server on P90/48M RAM,
> >100 000 messages per day, peak rate >1400 messages per minute.
I run QMail on a similar server and have had it screw up on errors
that resulted in slamming all of the subscribers with multiple empty messages.
It's done this 3 times in the last year. It out performs sendmail on large
mailing lists by an order of magnitude or more, but watch it like a hawk!
I trust sendmail far more than I trust QMail and I don't buy all
of Bernstein's hype. My experience with them both running side by side is
that QMail will outperform sendmail, when it's behaving properly. QMail has
a tendancy to misbehave far more often than sendmail and, due to the poor
coding style, QMail is impossible to debug.
> -Yenya
> --
> \ Jan "Yenya" Kasprzak <kas at fi.muni.cz> http://www.fi.muni.cz/~kas/
> \\ PGP: finger kas at aisa.fi.muni.cz 0D99A7FB206605D7 8B35FCDE05B18A5E //
> \\\ Czech Linux Homepage: http://www.linux.cz/ ///
> |||| > Where do the -- MARK --s come from ? ||||
> |||| It is the sound of Tux the penguin chewing on your system logs. ||||
Mike
--
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