Hello, Does anybody know how to solve the following problem? When I sent Email from our lab's Email account(using pine) to mailman's mailing list, say [EMAIL PROTECTED] error message is, "mail not sent, .1.1 <[EMAIL PROTECTED]>... user unknown". But I can send Email from other mail account to this mailman mailing list. Is Email server's problem? Thank you very much. Sean _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. ------------------------------------------------------ Mailman-Users mailing list [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py