Postfix or Sendmail for MS & SA?

[Julian Field]

Exim and sendmail will work significantly faster with MailScanner than
Postfix will.
This is due to the queue structures. Wietse's Postfix may be all very
clever but it requires a *lot* more I/O on MailScanner's part, which is not
needed with Exim and sendmail.

If you need some Exim help, I'm sure you could bribe Tony Finch into
helping you get going. Otherwise, there is a very good book called
"sendmail Performance Tuning" which will help you get the most out of your
system.

At 21:10 30/09/2003, you wrote:
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>Hello all,
>
>First of all by asking what's best I know I could be developing a flame
>war, although the MS list have been mostly free of those. Let's say it's
>not my intention.
>
>Ok now the real question;
>
>As some of you might know I'm an consultant (he sorry, it's a living.)
>an large customer of my company asked me to look at possibility of
>deploying an anti-spam, and potential anti-virus solution.
>
>Personally I'm a big fan of the mailscanner & spamassassin combination.
>In the past I build the sendmail, MS & SA combination for several semi
>large companies (1000 users or so). The customer now is in the order of
>50.000+ users, current estimate 2 * X FAST intel boxes, due to
>geographical redundancy. (3 < X > 8)  (please don't ask the cust's name..).
>
>I could build the sendmail, MS & SA combo again, but I'm looking at
>postfix as well. The idea is to deploy mailscanner in front of their
>commercial mail platform. The reason to deploy postfix is due to the new
>feature in PF 2.0.0, with local_recipient map, which is easy to
>integrate with ldap. The data store of the commercial platform.
>
>I'm fully aware sendmail support ldap as well, but not as easy to
>implement. And for this setup where the box will only be an "simple"
>relay, a bit heavy.
>
>The real questions (didn't i mention that before?):
>
>1) Postfix is "recently" added to the list of supported MTA's, it's not
>as long supported as Sendmail. Can somebody provide some educated hints
>in regards to stability etc.
>
>2) Recently Wietse Venema (The auther of Postfix) stated that he had
>some issues with the way MS operated. I can understand his point of
>view, but  nevertheless I like Julians approach. But did somebody ever
>encountered (major) issues in this area?
>
>
>P.S. I didn't look at any of the other MTA's due to my personal lack of
>knowledge, I only have a (lot of) experience with Postfix & sendmail.
>This basicly ruled out the other MTA's, sorry for those fans.
>
>- --
>Met Vriendelijke groet/Yours Sincerely
>Stijn Jonker <SJCJonker at sjc.nl>
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--
Julian Field
www.MailScanner.info
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