Richard Lewis richardlewis@fastmail.co.uk wrote: [...]
2007-10-08 10:07:54 no IP address found for host MAIN_RELAY_NETS (during SMTP connection from mailgate5.uea.ac.uk [139.222.130.185]) 2007-10-08 10:07:54 H=mailgate5.uea.ac.uk [139.222.130.185] F=richardlewis@fastmail.co.uk rejected RCPT events@studios.uea.ac.uk: Unrouteable address
and I get an "undeliverable" message from the UEA mail server (see below).
Does anyone know why my Exim is not forwarding mail correctly?
Not really. Try exim4 -bt events@studios.uea.ac.uk to get better debugging output. If that is right and your SMTP behaviour is wrong, try restarting exim4, to make sure it's using the current config. For comparison, mine says:
R: dnslookup for events@studios.uea.ac.uk events@studios.uea.ac.uk router = dnslookup, transport = remote_smtp host musariada.mus.uea.ac.uk [139.222.208.19]
But musariada.mus.uea.ac.uk doesn't seem to answer port 25. Does UEA block SMTP now? I think I recall struggling with them at various times to keep MTH and STU mailservers running.
When a message is sent to, e.g., events@studios.uea.ac.uk, does it go to some uea.ac.uk server first (mailgate5.uea.ac.uk?) and then does this server attempt to begin an SMTP conversation with my server? [...]
mailgate5.uea.ac.uk is probably your outgoing mail host. If you're sending through musariada.mus.uea.ac.uk, that's probably another indication that the active configuration isn't quite right.
And why is my server rejecting mail? (/Is/ my server rejecting mail?)
Is events in your studios.uea.ac.uk alias file?
Someone on #alug suggested that sending mail to canonical domain names (which studios.uea.ac.uk is) is not a good idea?
It confuses some servers, but musariada.mus.uea.ac.uk doesn't have an MX either, so I doubt it's the problem here.
Hope that helps,