postfix delay

Brad Beckenhauer brad at BECKENHAUER.COM
Fri Feb 18 17:12:48 GMT 2005 

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Just thought I'd add to the Vispan support comment. 
I agree: + Vispan support for postfix seems to be nonexistant.

I'm running Vispan 2.02 and it does run with Postfix, BUT it does not use the sendmail access list (obviously) and the Graphing inbound and outbound does not work (at least on my system) currently (Steve, if yours is working, I'd love to know how you configured it).  I have postfix configured using the "Header_Checks" option where email is dumped into the "hold" queue, picked up by MS, processed, and then put back into Postfix's incoming queue.  It works like a charm for me.

As for "sendmail over postfix",   I've used both MTA packages and my findings are that sendmail consistantly has more developer supported packages that integrate with MailScanner than postfix.  Google search for yourself.

You can find tons of comments (pros/cons, performance, tweaks and suggestions) on sendmail and postfix in the MS archives.



>>> Steen, Glenn<Glenn.Steen at AP1.SE> 2/18/2005 10:16:00 AM >>>
> -----Original Message-----
> From: MailScanner mailing list 
> [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf Of David Curtis
> Sent: den 18 februari 2005 15:03
> To: MAILSCANNER at JISCMAIL.AC.UK 
> Subject: Re: postfix delay
> 
> 
> Thanks to every one for their input. I will start looking into these
> suggestions.
> 
> Is there really any benefit to using sendmail over postfix? It seams
> like there might be but I have never used sendmail.
(Boy are we flame-bait:-)
Well, not really... At least not for me:-).
There are a couple of things that one should note though:
+ Sendmail 8.13.1 has a new spiffy "greet_pause" feature that postfix
  lack. This has been reported to be a real "spamtool killer".
+ Vispan support for postfix seems to be nonexistant.
+ The "mailq watching" feature of MailWatch is only for sendmail.

If any of these really matter to you... They don't to me (well, perhaps
excepting Vispan:). I guess one could argue this the other way round
too:-)...

-- Glenn

> 
> Thanks.
> 
> >>> Glenn.Steen at AP1.SE 2/17/2005 7:39:56 AM >>>
> > -----Original Message-----
> > From: MailScanner mailing list
> > [mailto:MAILSCANNER at JISCMAIL.AC.UK] On Behalf Of Drew Marshall
> > Sent: den 17 februari 2005 13:08
> > To: MAILSCANNER at JISCMAIL.AC.UK 
> > Subject: Re: postfix delay
> >
> >
> > On Thu, February 17, 2005 11:39, Steen, Glenn said:
> > > Thanks Drew. Thought so, but it's always better to have
> > more than one
> > > pair of eyes....:)
> > >
> > > I found a lot of the anti-UCE docs on
> > http://www.postfix.org/docs.html 
> > > to be very helpful,
> > especially John Seymours
> > > http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt 
> > > ... And some nice rtfm on the smtpd_*_restrictions settings:-).
> >
> > Yes, there is lots of good info out there. I spent ages
> > re-formatting my
> > main.cf so I could easily identify, set up and maintain
> > particularly the
> > smtpd_* options using nice stacked options starting with white
> spaces.
> > That way I know what will be checked and in which order. I
> > have also been
> > using an extension to the 'single Postfix instance' MailScanner
> rule,
> > allowing me to block using other headers. Put all other lines
> > *above* the
> Yep. I use that same space for "Header sanitizing" too... Have a
> longish
> list of headers that I simply IGNORE (more than the usual stuff you
> find
> on security-sage etc). Works very well. Can share upon request
> (perhaps
> off list).
> 
> > Received: check for MailScanner but you can use regex to
> > block based on
> > Subject: (Crossing threads slightly :-) ) From: or anything else you
> > fancy. It's been very effective rejecting mail from a broken
> > mailer at my
> > car insurance company (2000 copies of the same confirmaton in
> > 2 hours).
> :-) May be a good indicator to use another insurance firm...:-)
> 
> Regards
> -- Glenn
> >
> > Drew
> >
> >
> > --
> > In line with our policy, this message has
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> > content by MailScanner, and is believed to be clean.
> > www.themarshalls.co.uk/policy 
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