I have had my qmail setup for several years and just now have started to
notice that some recipients are returning:
550 relaying mail to ... is not allowed.
This happens when a virtual user is relaying through my server and the
servername is not the same as the recipient.
For example: I send mail from [EMAIL PROTECTED] to [EMAIL PROTECTED] and it is
rejected with the above error. However if I send mail from the domain that
is listed in defaultdomain "laschools.org" it works fine.
This has happened both times on university sites. exchange.calstatela.edu
and ucla.edu. Could it be an exchange server setup that is bad. Or do I
have something misconfigured for all this time and didn't know it.
