Mailscanner, MTA and postfix questions

[Lindsay Snider]

Hey Jason!

I have another method to run postfix.  It's less hacky, required only
one postfix instance, and has been running great here on 7 machines for
over a year.  It's also easier to setup.  Here is the template email
describing how to set it up.

First, have postfix put all messages you want scanned into the hold
queue.  Since we want them all scanned, our header_checks has a one
liner in it that matches every email.

/etc/postfix/main.cf:
header_checks = regexp:/etc/postfix/header_checks

/etc/postfix/header_checks:
/^Received:/    HOLD


And here are the changes for MailScanner.

/etc/MailScanner/MailScanner.conf:
Run As User = postfix
Run As Group = postfix
Incoming Queue Dir = /var/spool/postfix/hold
Outgoing Queue Dir = /var/spool/postfix/incoming
MTA = postfix

/etc/sysconfig/MailScanner:
MTA=postfix

chown -R postfix:postfix /var/spool/MailScanner/

and we like to mount mailscanners working directory on /dev/shm. For us,
MailScanner ran about 20% faster.

fstab:
/dev/shm                /var/spool/MailScanner/incoming tmpfs defaults
0 0

When starting/stopping MailScanner w/ init.d, it complains about not
finding the incoming postfix instance but its safe to ignore the error.

Let me know how it goes or if I can provide any more detail/info.
Good luck!
-lindsay

Jason Williams wrote:
> Hello everyone.
>
> I've been tinkering around lately with Mailscanner and have really liked
> what I have seen so far. I've been able to successfully get MS up and
> running on a FreeBSD box running sendmail. I setup clamav without breaking
> a sweat. The only thing I haven't been able to get fully involved with yet
> is working with SA...
>
> I wanted to ask a few questions regarding MTA's and MS. I know Sendmail
> works with MS and works quite easily. However, I have toyed with the idea
> of running MS on a postfix box (MS is going to act as our mail gateway,
> scanning and stripping items as they come in, then forward to our private
> mail server).
>
> I've read through some archives as well as the FAQ on Postfix, but I wanted
> to hear some other feedback in regards to how well Postfix works with MS. I
> read in the archives, that support for Postfix is not fully implemented
> yet?
>
> I don't mind running MS on a Sendmail box, but I wanted to get the best of
> both worlds by running one of our mail servers on postfix, and the other on
> sendmail (granted, our internal mail server must run Sendmail)
>
> I quickly setup a postfix box here at work and did some initial
> configurations. However, I was confused about one part of the setup that
> was listed on the MS site. Specifically, the part where it says to comment
> out the smtpd line in master.cf. That would effectively not allow it to
> listen on port 25 at all. Is this a typo? Or is there something else that
> needs to be done with this as well.
>
> I appreciate the help.
>
> Just a quick question: Do most people run MS on Sendmail? Anyone have a %
> list of what MTA is most popular to run MS on? Just curious really.
>
> Thanks everyone!
>
> Cheers,
>
> Jas