1) Make sure /etc/resolv.conf is setup correctly.... if you can't do `host xxx.yyy.zzz', sendmail can't find it either 2) sendmail is restrictive by design - you have to tell it that you know the blood is upon your hands ;-} on the black machine (your apparent gateway), make sure this is in /etc/mail/sendmail.cf: FEATURE(relay_entire_domain)dnl -- Rick Nelson C:\WINDOWS C:\WINDOWS\GO C:\PC\CRAWL