You can configure an SMTP server to forward mail to your "real" mail
server. It would do all the spam filtering and just forward good
email. I've been away from email for too long. Can't help with
details.
On Jan 11, 2011, at 7:50 PM, "Joshua J. Kugler" <joshua@eeinternet.com> wro=
te:
> So, I'm looking to configure a POP3 and SMTP proxy (for virus, and maybe
> spam, scanning) on a Linux firewall. I would preferably set it up so
> it is transparent. I've found this project:
>
> http://p3scan.sourceforge.net/
>
> But its last stable release was in 2005, last dev (3.0rc1) release was
> early 2008, and its mailing list is rather dead. So, it looks
> attractive, but I'm not a C expert, so would be rather hesitant going
> in to this with no support. Something that seems attractive about
> p3scan is that it gets the original IP address from the kernel, so you
> don't have to configure lookup lists or anything like that to determine
> where a user connects when they try to get their mail.
>
> I also found this:
>
> http://horms.net/projects/perdition/
>
> But 1) I haven't found any reference to using it as a transparent proxy,
> and 2) It's POP/IMAP only, so I'd have to set up something else for
> SMTP.
>
> Google doesn't give me much more than that.
>
> Anyone using nginx for POP3/IMAP proxy? I've also seen references to
> using it as an SMTP proxy, but nothing really clear. Hmm, there is
> this: http://wiki.nginx.org/MailCoreModule but it talks about HTTP
> headers in POP3/IMAP responses...confusing.
>
> Does anyone on the list use an Open Source SMTP or POP3/IMAP proxy? Any
> suggestions?
>
> j
>
> --
> Joshua Kugler
> Part-Time System Admin/Programmer
> http://www.eeinternet.com - Fairbanks, AK
> PGP Key: http://pgp.mit.edu/ =EF=BF=BDID 0x73B13B6A
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Received on Tue Jan 11 20:28:22 2011
This archive was generated by hypermail 2.1.8 : Tue Jan 11 2011 - 20:28:22 AKST