> I know, I know, use what you feel comfortable with, but how comfortable > are you guys with Exim?
I use Exim here for a low throughput small office mail server, grabbing aliases from LDAP. I'm very happy with it - the documentation is extensive, and the configuration is a doddle. The Exim user mailing list is pretty good too; Philip Hazel, the software's author is (was - it's a while since I was subscribed) a regular contributor and has written an O'Reilly book on Exim as well as running Exim workshops from time-to-time at Cambridge University. I know that some large ISP's in the UK do use Exim: BTOpenworld off the top of my head have > 1 million users and use exim. Hope this helps a little. Regards, Ronny