[KLUG Members] exim? postfix? why not?

[Peter Buxton]

On Mon, Dec 09, 2002 at 01:14:10PM -0500, Adam Williams wrote:

> True. They may be pretty much over.  And they probably all have a
> sufficient user base to survive into the foreseeable future;

That, I am sure, is another reason the roar died down: when sendmail was
all there was, no one knew any better; when the second SMTP MTA was
written, all sendmail's idiosyncrasies (and flaws) came to the surface;
when the third was written, then people really had to agree what was
what. ;-)

Also, period two above came about when sendmail was in that 'hung,'
unsupported state: even worse.

> Right, but that illustrates the primary problem I found with other
> MDAs.   If one thinks the docu for sendmail is bad (and I do), the
> docu for the others is, in a word, horrible.  

Oh, no, Exim has great documentation:

http://www.exim.org/exim-html-3.30/doc/html/spec.html

It's just that when I was setting up Cyrus, I read through the docs
until I saw 'lmtp transport' where I halted and read. Had I continued, I
would have seen that the smtp transport also speaks LMTP. :)

> That would be a HUGE draw back, IMHO.  Looking at our mail stats, not
> performing the error in session would result in a significant increase
> in our mail volume.
> 
> I'd be surprised if Exim/Qmail/et al. didn't really support milters
> however.  I assume it is `just' a matter of assembling a HOWTO;
> requiring about 12 hours with Google, a crystal ball, and
> psychological profiles of the lead developers.

If you don't mind running embedded Perl in your mailer:

http://www.exim.org/FAQ.html#SEC207

No, Exim has many settings to set/unset bouncing a message before it is
officially accepted (RBL et alia, reverse lookups, recipient matching,
header syntax verification, ad nauseum) but the filter language
(decidedly Sieve-like, I think) is definitely post-SMTP-acceptance.

Approximately how much mail do you refuse based on content filters?

-- 
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Power tools for power fools.