Ok, I read the thread a few days back in which RythymAce described how to set up domain realying. I did so exactly as he said, and it worked perfectly. I have access.db and FEATURE(`relay_local_from') in my sendmail.mc. It worked totally smoothly, until I rebooted my server. Now it doesn't work at all. I even get relaying denied when trying to send mail only in my domain (userA@mydomain.com to userB@mydomain.com). My MX record is ok. I have no clue whats wrong. The only thing I've changed at all is an rc script that mounts a directory on my windows machine with smbfs.