For anyone who's been following the Reverse DNS thread ... here's an error message I received for some mail that was successfully downloaded but failed to be delivered, seemingly because the software couldn't resolve the sender's name. The .fetchmailrc entry for this particular connection is: poll 216.121.7.247 proto pop3 no dns envelope X-SMTP-Envelope: user USER with pass PASSWORD is britlinks here Any help would be very gratefully received. I'm getting very tired of using win98 for my e-mail system. James. ---------- Forwarded message ---------- Date: Mon, 9 Aug 1999 22:49:51 +0100 From: Mail Delivery Subsystem <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Subject: Postmaster notify: User unknown The original message was received at Mon, 9 Aug 1999 11:56:56 +0100 from IDENT:[EMAIL PROTECTED] [127.0.0.1] ----- The following addresses had transient non-fatal errors ----- <[EMAIL PROTECTED]> ----- Transcript of session follows ----- 451 <[EMAIL PROTECTED]>... pronet.ca: Name server timeout Warning: message still undelivered after 4 hours Will keep trying until message is 5 days old 550 <FETCHMAIL-DAEMON@localhost>... User unknown