Just a FYI to all -- I was experimenting with SMTP connections from a Windows XP box out to a Sendmail server with TLS enabled, and for some reason, kept getting a message back from Sendmail that said 'Unsupported command' when trying to issue a STARTTLS command. Worked fine telnet'ing to port 25 from a Linux box, but when I went to the XP box and issues the same command (in telnet), it caused problems. Finally narrowed it down to a 'usual suspect' for pop3 problems -- Norton Antivirus. It's got a feature that proxies outbound SMTP connections, and only supports a limited command set. Ugh! Just a FYI for anyone who comes into this one.. -- Nate Carlson <natecars at real-time.com> | Phone : (952)943-8700 http://www.real-time.com | Fax : (952)943-8500