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Topic: NOQUEUE: reject: RCPT from unknown[127.0.0.1]:

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- iRedMail version: 0.8.5
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: RHEL6_64bit
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When trying to send e-mail I'm getting the below errors in /var/log/maillog.  I've done a ton of research on this and it seems to be a DNS issue but I can't seem to get it worked out.  /etc/resolv.conf and /var/spool/postfix/etc/resolv.conf match.  Any help would be much appreciated.

NOQUEUE: reject: RCPT from unknown[127.0.0.1]: 450 4.1.2 <user@gmail.com>: Recipient address rejected: Domain not found; from=<user@magnetix.com> to=<user@gmail.com> proto=ESMTP helo=<my.hostname.com>

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Re: NOQUEUE: reject: RCPT from unknown[127.0.0.1]:

My end goal, like most is to host multipal-domains (i.e. magnetix.com) with non-unix ID's.

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Re: NOQUEUE: reject: RCPT from unknown[127.0.0.1]:

hobert.silva wrote:

Recipient address rejected: Domain not found; from=<user@magnetix.com> to=<user@gmail.com>

This is the root cause.
Do you have correct DNS server in /etc/resolv.conf and /var/spool/postfix/etc/resolv.conf?