Frank Tegtmeyer schrieb: > I doubt that the sender is really external - you wouldn't get the mail > through SMTP because of missing MX records. good point > I think there is a wild > running script or a buggy SMTP client inside your network. > > Regards, Frank you were right, i found the bad guy: one of our users had entries like "display name: Name, Firstname" in their netscape address book, and the external people had replied to his mails using "Reply To All" *sigh* thanks wolfgang
