I was getting bounced mail from my HISTARCH list in my mailbox, but now the list is getting hit. The mail is bouncing from a domain unknown to the system (it keeps saying illegal host/domain found). The domain given is nation.shareworld. com. For a while it was being bounced from red.ccsnet.com, but I emailed their postmaster, and while I got no reply, the bounce is now coming directly from nation... Each time someone posts a note to the list, a bounce shows up ON the list as well. I suspect that someone on the list has forwarded their mail to a non-active host. How can I find this address and stop the bounces? TIA. Anita Cohen-Williams; Reference Services; Hayden Library Arizona State University, Tempe, AZ 85287-1006 Tel: (602) 965-4579 FAX: (602) 965-9169 [log in to unmask] Owner: HISTARCH, SPANBORD, SUB-ARCH