Hi, I have a 55,000 subscriber list and I'm trying to work out the easiest way to add new subscribers to my list once in a while in batches of around 500 at a time. Right now, I can add them from the owner email id using an "ADD listname [log in to unmask] *" and confirm the addition from the owner email id --> but I'd have to respond "ok" to 500 confirmation messages from listserv. I guess I'm looking for easy, secure bulk appends to my subscriber list. Thanks in advance. David Mayerlen