Quoting Scott Eschner
1. What kind of Anti-virus software is recommended?
ClamAV and one or two commercial ones. Updating on different schedules. The idea is to minimize windows of vulnerability falling in the middle of a supplier's development/update cycle. I have used F-Prot and H+BEDV's AntiVIr, because they give out free licenses for non-commenrcial/personal use. I also use McAfee's virus scanner for a Windows box that has an alternate e-mail route not thru my e-mail server.
2. what email service should be used? Postfix or Sendmail?
Postfix unless your already know how to configure Sendmail. Less cryptic configuration syntax, better security record, etc.
Any other recommendations/suggestions, configuration ideas, are welcome.
"Postfix: the Definitive Guide" by Kyle Dent, O'Reilly & Assoc. Reviews at: http://www.unixreview.com/documents/s=1357/ur0406f/ http://www.linuxjournal.com/article/7618 Also amavisd-new (glue logic), SpamAssassin 3.x, and DSPAM. HTH, Jeffrey