Hi, Short of moderating the emails from all 635 members of this list, we can't prevent messages to the list that come from compromised email addresses. It was yahoo and now it seems to be aol that is being targeted. All we can do when this happens is to moderate the address in question after it happens until we are told it is no longer a problem. I'll repeat that messages without a subject and just a link and with a number of addresses in the to field should be deleted immediately. And I'll repeat what David Pilling wrote when we were having spam from yahoo. Just think aol instead of yahoo if this applies: >I'd humbly suggest that if you have a yahoo account you make sure your >password is strong, and that the answers to the password reset questions >are not available in the public domain - e.g. you've got your first >pet's name on facebook. Mary Sue