> Forgive me if this has been asked before. I've had a few complaints from > subscribers who have posted messages lately that they are getting both > "undeliverable mail" bounces and out-of-office auto-reply messages from > other subscribers when they post to the list--things that I am not seeing > in my listowner's mailbox, where they should of course wind up instead. > Why is this happening, and how can I prevent it? Microsoft Exchange send its Out-Of-Office messages to the address in the From header -- a poor practice. LISTSERV never sees them. Some older non-Internet Mail systems with gateways send bounces to the From address.