I have three mail servers and I need mail for certain users to forward to another box.

On BOX A /etc/aliases are set up => alias: user@boxb.mydomain.com

BOX B is FEDORA 5, postfix, dovecot and it will not accept the forwards (or any mail) sent from BOX A.

BOX C is an MS Exchange and BOX B accepts mail from it just fine.

Here is an example error from the maillog on BOXA:

Apr 2 18:11:17 BOXA sendmail[6880]: k31LmVgo024751: to=user@BOXB.domain.com, delay=1+01:22:45, xdelay=00:00:00, mailer=esmtp, pri=9300919, relay=BOXB.domain.com., dsn=4.0.0, stat=Deferred: Connection refused by BOXB.domain.com.

I have read the other posts that seemed related to this and still cannot resolve this problem.

so what am I missing?

-thanks in advance

Did you check your postfix config to make sure that are you allowing postfix to relay mail for box A?

-twantrd

unless I am missing something I am not trying to relay the mail.

I can't even send an email straight to it from BOX A.

It responds with Connection refused by BOXB.domain.com

Though, I can send email to it from any other location like gmail or the exchange box that's on the same network.

Oh, I thought you meant relaying the mail. Sorry 'bout that. Well, are there any rules in your iptables? How about hosts.allow and hosts.deny?

-twantrd

Hey thanks for the help but I just modified the other server to do my bidding and eliminated the postfix box.
It was too much hassle to warrant all the effort.

Again, I really appreciate the help though.