At the risk of sounding really stupid, I have to ask what the keyword is to make my list periodically validate the addresses. I know this is possible because I get these mesaages from listservs to confirm my subscription from time to time. Where is the documentation for this? Is it possible to force this for individual addresses as well? How do I exclude redistribution addresses? --------------------------------------------------------------- Univ of Illinois at Chicago, AISS/IMS, Phone 6-7739 Internet email address: [log in to unmask] "I'm from the government. I'm here to help you."