Hi all,

I have an issue. I have a site with an alias as I'll describe following:

web site: example-site.com
alias: example.com

example.com has an exchange server at another IP which works fine unless I try to send mail from an account on the same server and the php contact form. If I do that it just loops and gets put into the que.

So mail goes to mail@example.com from my mail server should just go to the exchange box IP but it gets translated to mail@example-site.com which has a forwarder to mail@example.com and just loops.

I have set the A record for example.com (the alias) and the MX record to match the exchange server. Just to clarify all works fine unless I send it from an account on the same server e.g. example-two.com.

Software:

RHEL 5
Bind
Postfix

Thanks in advance.

Glyn

Without a significant amount of additional information its hard to make any kind of judgment what might be happening exactly, how about giving us the output of a "postconf -n" to start with, that should provide some good working information about your setup and should be a good place to start with a mail loop.

It would also be useful to have the full mx records for the domains in question to make sure mail is routing correctly in the first place.