this is a bare fc3 install w/no upgrades yet. its it's own dns server and seems to work fine. the sendmail.mc config file...the loopback daemon option is commented out. I can send and receive a msg to myself using evolution and can send mail outside but cannot receive. y'all probably need more info but let's just start here. I don't think the msgs are getting thru to that system because this sendmail is setup on an FC2 machine and it's getting the replies of msgs that should have gone to that other server. So it looks like that fc3 sys is refusing but I can't see in the logs where it's doing so. I have remaked the "mc" file a couple times in /etc/mail. host and resolve look ok...just dunno thx John Rose -- Trust Everyone. Just make sure you brand your cattle.