Hi gang, Does anyone know of a .mc that I can add to my sendmail to block folks who send--mostly viruses--appearing to come from my maddoc.net domain? I'm getting sick and tired of all these viruses acting like "noreply@" and "postmaster@" seemingly coming from my servers. Thanks! -- -Doc Lincoln, NE. http://www.genealogyforyou.com/ http://www.cairnproductions.com/