Sam Kuper writes:
Oct 26 11:49:21 shelleysoldbox courieresmtp:
id=00027AE8.4904593F.000031D0,from=<sam@shelleysoldbox>,addr=<sam....@uclmail.net>:
504 Need Fully Qualified Address
'tail -n50 /var/log/mail.err' doesn't give any results.
I guess that the "504 Need Fully Qualified Address" part might be
significant,
Of course it's significant.
but I'm not quite sure what it means or what to do about
It means that the receipient mail server rejected your mail.
it. I can't see anything relating to that error code on the Courier
website.
It's not an error message from Courier, but from the recipient's mail
server. "shelleysoldbox" is not a valid Internet domain, and the recipient's
mail server rejects this invalid return address.