>as the lists had been in existence for four to five years each they had over >a third deadwood, and the mainframe manager is thrilled that I reduced the >load on the machine by letting renew clean up my lists. Exactly what overhead is generated by NOMAIL subscribers? I can think of a few hundred bytes to keep their names on disk and a few microseconds each time listserv skips their names when processing a post. Am I missing something more significant? I have nearly 100 NOMAIL's out of 600 subscribers, some for good reasons (temporary leave, multiple addresses), some not. I am reluctant to spend time sorting them out, or to bother my subscribers with renewals. But I am prepared to change my mind if I am given a good reason. Nicolas