The other option is to only allow SMTP traffic to and from your IMGate machine IP address. Len can direct you on how you could do SMTP authentication on the IMGate machine if you need that for your customers.
PostfixGate A member supported Anti-Spam Database for Postfix, Sendmail, IMail, and many other *nix MTAs. www.postfixgate.com ******************** Tel: 509-344-2001 Fax: 509-226-0710 > Question: > > I currently use IMGate as a front end to Imail. My IMGate has no local > users. > > My IMGate machine (mx1.netdotcom.com) is the MX specified in my DNS. My > Imail server host name is mail.netdotcom.com which is NOT specified as an MX > in DNS. > > A lot of spam is addressed in the to field as: [EMAIL PROTECTED] Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/
