Comments on: (Fix) Postfix: Recipient address rejected: Domain not found

By: Alan

Alan — Sat, 10 Sep 2011 01:20:09 +0000

It’s not clear to me exactly what you’re doing, but I wonder about two things: first, is there anything that tells Postfix that the MX record for “domain2.com” is “domain2.com”? And second, is Postfix actually resolving those names using the local lookup and host file, or is it doing something different?

By: alex

alex — Wed, 07 Sep 2011 00:26:42 +0000

Hello,

I am hosting 3 domains in one server. For headers Return-Path,X-RocketMAILFROM and Received, sendmail puts canonical name of the server with correct usernames. For example if I send and email as users user1, these headers looks like user1@canonicalname.com. For user2 as user2@canonicalname.com
DNS looks fine and I have in my hosts file the following,
127.0.0.1 localhost localhost.localdomain canonicalname.com
***.**.***.**(server’s ip) domain1.com
***.**.***.** domain2.com
***.**.***.** domain3.com

Any help appreciated.

Thanks.
Alex.

By: Mohamed

Mohamed — Mon, 27 Dec 2010 11:11:11 +0000

Apologize that my answer is very late but it could help somebody else :)
Your postfix is chrooted. That’s why your problem is solved when your copied ‘/etc/resolv.conf’ to ‘/var/spool/postfix/etc/resolv.conf’
Your can un-chroot it by changing the following line is /etc/postfix/master.cf
smtp inet n – – – – smtpd
BY
smtp inet n – n – – smtpd

and you have to restart your postfix after this step

By: Alan

Alan — Sat, 07 Aug 2010 17:30:40 +0000

Thanks for sharing the fix for that – I don’t remember seeing that mentioned as a problem before.

By: Oscar

Oscar — Mon, 02 Aug 2010 16:17:03 +0000

The problem was solved when I copied ‘/etc/resolv.conf’ to ‘/var/spool/postfix/etc/resolv.conf’. It seems Postfix was running chrooted.

By: Oscar

Oscar — Mon, 02 Aug 2010 00:10:08 +0000

Hello,

I’m having a similar problem with postfix (installed by iedMail). I can send and receive between users of the local domain, but I can’t send to or receive from a external domain.

I can even resolve with host and host -x my domain and the external domais.

I googled it for a while but I haven’t found anything that works for me.

By: Alan

Alan — Tue, 09 Mar 2010 16:32:51 +0000

A quick note based on someone searching for “ESVA 2.0.5.9 download” – to get ESVA 2.0.5.9, download and install the most recent available version from http://www.global-domination.org/ESVA.php (I believe it’s 2.0.5.7), configure it per the instructions, then log back on as root (either at the console or by logging in via SSH and doing “su -” and run the command “esva-update” to convert from 2.0.5.7 to 2.0.5.9.

By: Alan

Alan — Mon, 08 Mar 2010 17:30:58 +0000

Worth checking if you’re getting a “Domain not found” error: at the command line of the Postfix server itself, try `host domainnotresolving.com` – if it doesn’t return anything, then Postfix is going to have the same problem of not being able to confirm that the domain in question exists, so it’s not going to accept the message.

If you’re having this problem and you know that the domain should resolve, try to find out why it’s not doing so. Just putting it in the hosts file may not do the trick – if `host`, `nslookup` or `dig` won’t resolve it, Postfix won’t either.