At work we have a Debian server, which has got ClamAV installed. I would like to use this box as a proxy for all incoming e-mail, so that ClamAV can scan the incoming e-mails for viruses. However, I don't want to set it up as a full-blown mail server, I just want incoming mails to go through the server first.

I'd like to set up a POP3 proxy running on the server, which will allow ClamAV to scan all e-mails for viruses before passing them onto the Windows clients. I found P3Scan, which is a development of pop3vscan, and it is almost what I want. The downside is that both these work as transparent proxies, and have to run on the router, but we have an ADSL router.

So, my question is this. Can anyone tell me where I can get an open-source POP3 proxy that will allow me to use ClamAV to scan e-mails for viruses? Or, failing that, is it possible to set up a POP3 server that will collect e-mails from our ISP's POP3 server, then serve them to the Windows clients?

Russ

What I would do here is use fetchmail to download the mail from the server, get ClamAV to scan the /var/mail/* files and run a pop3 server which the other windows machines connect to. Provided fetchmail scans regularily then it shouldn't prove problematic - I can't say I've ever heard of a pop3 proxy.

Thanks, I'll look into that.

Russ

i use fetcmail too. i have a redhat 8.0 with qmail + kaspersky antivirus.
here is what i do:

#cat /root/getmail
poll mail.myisp.com with proto pop3
user "maxut" there with password "pass" is "maxut@local" here

cron job that checks emails to get from isp's server for every 5 minutes.
*/5 * * * * fetchmail -f /root/getmail

if your linux is also internet gateway for local clients, u can add a redirect command. so u wont have to change email client configuration to use your linux as pop3 server. they still think that they connect to isp's pop3 server :-)
iptables -t nat -A PREROUTING -s localnet/subnet -p tcp --dport 110 -d mail.yourisp.com -j REDIRECT --to-port 110