Anyone use Postfix as a relay server?

[Spectrum]

Has anyone used Postfix as an e-mail relay server?

I am trying to replace a Linux box running Sendmail and SpamAssassin. The Linux box sits in our DMZ and acts as the MX for our domain. It receives inbound e-mails, scans them with SpamAssassin and forwards them in to our Exchange server for local delivery.

I’m trying to set up the same scenario on an XServe I just installed in the DMZ to replace the aging Linux box.

Question is: 1.) Is it possible? (I’m pretty sure it is)
2.) Any caveats doing it on OS X?

[phi]

I use postfix with MailScanner, SpamAssassin, & ClamAV. What happens is that you run two instances of postfix, essentially postfix.in & postfix.out. Postfix.in takes the mail in, MailScanner picks it up, does it’s magic, and then drops it to postfix.out which then forwards it on to the corporate mail server.

I chose this method b/c I like to have a layer of protetction between my server and the internet. It scans incoming and outgoing mail on the network, so we make sure we receive no virus messages and, if we do happen to get one, we don’t spread it back to the internet.

I have this running on a Fedora Core box, but I would think that setting it up on OS X server wouldn’t be very difficult at all.

[Spectrum]

Just wanted to say that after a bit of brain damage from reading many pages of articles/manuals/posts I did get this working and also was able to cleanly integrate SpamAssassin 3.0and an LDAP relay access puller into it.

Works quite well allthough I think I will need to put some more RAM in my G5 XServe.

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