Sent a group email via POP3; I was the "TO", everyone else BCC'd. Two "undeliverable" addresses in the BCC list, got messages on those. Left computer for a few hours. Meanwhile, the original message was sent out multiple times (like 200-300 times) to every recipient that I'd blindcopied. I had 1500+ in my inbox by the time I discovered the problem. Found a copy in my Outbox., killed it and that took care of the problem, though by that time I was locked out of my own inbox and had to call Bellsouth to free it up.

Never had this happen before, though I almost always use blindcopy to protect privacy of others when doing "group" emails. What did I do wrong?

Any help much appreciated - Dee