I setup my Mac OS X 10.8 Mail Server successfully (thanks to Mike23 for yor help). Now I configrued Mail and Web addresses and all seems to work very well. Now, sometimes, I receive a Mail Delivery System error from some receipients. Here is a copy of the error message:
This is the mail system at host server.domain.tld.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
5.7.1 Client host rejected: cannot find your reverse hostname,
[80.xx.xx.206] (in reply to RCPT TO command)
Reporting-MTA: dns; server.domain.tld
X-Postfix-Sender: rfc822; firstname.lastname@example.org
Arrival-Date: Thu, 4 Oct 2012 09:24:32 +0200 (CEST)
Final-Recipient: rfc822; email@example.com
Remote-MTA: dns; mail.xyz.net
Diagnostic-Code: smtp; 554 5.7.1 Client host rejected: cannot find your reverse
I configured DNS on my MAC Server with my Domain as follows:
Server Name: server.domain.tld
domain.tld - Machine
server.domain.tld - Alias
mail.domain.tld - Mail Exchanger
mail.domain.tld - Alias
So I think that the DNS system should be not the problem ...
Any Tips please?