mail server

Les Mikesell lesmikesell at
Thu Dec 15 20:53:50 UTC 2005

On Thu, 2005-12-15 at 10:22, John Summerfied wrote:
> Les Mikesell wrote:
> > On Wed, 2005-12-14 at 15:45, David Cary Hart wrote:
> > 
> >>>Sendmail takes a 1-line change to the stock file provided
> >>>with fedora to make it do what most places would need.   If you are
> >>>going to add virus and spam filtering, only sendmail provides the
> >>>milter interface to run the scan during the smtp conversation and under
> >>>a non-privileged id.
> >>>
> >>
> >>That's incorrect. Postfix does that as postfix.
> > 
> > 
> > Doesn't postfix have write access to your mail queue? The milter I run
> > under sendmail has it's own workspace but can't write anywhere else
> > including the mail queue.  By non-privileged, I didn't just mean
> > non-root, I meant a different id than used for anything else.
> > 
> Postfix does not do milter. It can and does pipe through another process 
> (eg spamassassin) before doing delivery, but that's after the SMTP dialogue.
> Unless I've missed some new development. I was looking at MimeDEFang 
> (however its capitalised) from Roaring Penguin (home of rp-pppoe) which 
> does milter and therefore, then, could only be used with sendmail.

Yes, I think that is what I meant to point out as an advantage
of running sendmail a few messages back...  The alternative
MTA's modularized the steps of basic processing and allowed some
to use reduced permissions but meanwhile sendmail went even
further by adding the milter interface for concurrent processing
by programs running under a different uid.

 Les Mikesell
   lesmikesell at

More information about the fedora-list mailing list