From: Beast (beastldap.or.id)
Date: Fri Mar 24 2006 - 02:25:48 CST

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I have an internal mail server, mail gateway and external mail server.

[internal] ----------> [mail-gw] ---------> internet
                             |
                             | dmz
                             v
                        [external] --------> internet

Incoming mail to example.com are hadle by mail-gw (mail.example.com)
and then relayed to internal (internal.example.local).

For some reason I have add a new external mail server
(external.example.com) and now I have problem when sending mail from
internal to external. Postfix in mail-gw trying to resolve address to
local domain.

Mar 24 14:56:22 blowfish postfix/smtpd[30620]: NOQUEUE: reject: RCPT
from unknown[192.168.1.10]: 550 <beastexternal.example.com>: Recipient
address rejected: User unknown in relay recipient table;
from=<testexample.com> to=<beastexternal.example.com> proto=ESMTP
helo=<internal.example.local>
Mar 24 14:56:22 blowfish postfix/smtpd[30620]: disconnect from
unknown[192.168.1.10]

mail-gw:
main.cf:
myhostname = mail.example.com
mydomain = $myhostname
mydestination = localhost, $myhostname

relay_domains = indorama.com

transport_maps = hash:/etc/postfix/transport

transportmap:
#local destination
mail.example.com :
# forward all to internal.example.local
example.com smtp:[192.168.1.10]:25
## external mail
external.example.com smtp:[192.168.1.6]:25

I guess the problem is i relay_domains, how to tell postfix to abey the
transport?

--

--beast

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