Ok, here's my problem. I deleted a couple of users, but when I send an email to allstaff (the name of the group I created) I get a bounce back from the server saying that blahblah@myserver.com is not a user.....and I've deleted that user. Anyone have any suggestions? I'm running 5.5 with Dan Brown's update to IMP and Horde, RAV antivirus, and haven't upgraded to the update 2.