I'm not sure if this is really what's happening or not, but thought I would ask if anyone else is seeing this. I have a couple of lists using SmartList which are announcement-type lists. Only the moderator is allowed to post to them. Today, one of the moderators asked if his announcement was sent out twice last week. The mail logs showed two receipts from his address to the email list's address. One was from our mail system, but another was from a system I didn't recognize. Since both were from him (had his email address in the From: field), the message was sent out twice. The second one could have possibly contained a virus, since the message size was about 1700 bytes larger than the first. My questions: 1.) Is this a possible scenario with SmartList? I can't think of any reason why this wouldn't work. 2.) Is there any protection to avoid this? I can't think of any setting to make the system reject messages from the moderator which DON'T come from a particular mail system. Is there any other way? Moderator must approve his own posts? Thanks for your help with this. I scanned the threads for the last two months on this forum, but didn't see anything that I thought would pertain to this. Please forgive me if I overlooked it and you point it out to me. -Kevin Zembower ----- E. Kevin Zembower Unix Administrator Johns Hopkins University/Center for Communications Programs 111 Market Place, Suite 310 Baltimore, MD 21202 410-659-6139