A review of my list shows 1041 subscribers. An ACK message says ..."been successfully distributed to the AAPORNET list (923 recipients)." I'm on semi-auto delete, but there are only two accounts being monitored, and another 3 or 4 that generate errors. So what accounts for the 118 difference? Can listserv detect alias subscriptions (I know that some users have multiple email accounts subscribed)? If so, does it match on the name, or what? Shap Wolf Arizona State University AAPORNET host