postfix and exchange

[DanW]

anyone implemented postfix and exchange solution where external mail comes into postfix is passed to exchange.

 

sending mail, leaves exchange via a send connector, goes to exchange and heads off to the interwebs.

 

 

I've managed to get postfix working so external mail comes in and goes to exchange.

 

But when i send mail from exchange it doesn't work and i get the following error

 

Your message wasn't delivered because of security policies. Microsoft Exchange will not try to redeliver this message for you. Please provide the following diagnostic text to your system administrator.

The following organization rejected your message: 192.168.1.239.

 

Diagnostic information for administrators:

Generating server: **

[email protected]
192.168.1.239 #<192.168.1.239 #5.7.1 smtp; 550 5.7.1 Unable to relay> #SMTP#

Original message headers:

Received: from localhost (emerald [127.0.0.1])  by domain.com
(Postfix) with ESMTP id 10ADB17776E     for ; Thu,  8 Oct
2009 14:08:24 +0100 (BST)
X-Virus-Scanned: amavisd-new at domain.com
Received: from domain.com ([127.0.0.1])
       by localhost (mail.domain.com [127.0.0.1]) (amavisd-new, port 10024)
       with LMTP id CWewW+To43VB for ;
       Thu,  8 Oct 2009 14:08:21 +0100 (BST)
Received: from exchange.** (exchange.** [192.168.1.239])
       by domain.com (Postfix) with ESMTP id 159A517776A
       for <>; Thu,  8 Oct 2009 14:08:21 +0100 (BST)
Received: from EXCHANGECLUSTER.** ([192.168.0.13]) by
exchange.** ([192.168.1.239]) with mapi; Thu, 8 Oct
2009 13:53:49 +0100

 

 

if anyone is able to help, it would be greatly appreciated

[wlaidlaw]

You need to configure posfix to allow relaying of email from your exchange server.

 

In /etc/postfix/main.cf (or similar)

 

Make sure you have lines like:

mynetworks = [ip of postfix server, [ip of exchange server as seen by postfix server]

relay_domains =

 

 

Hope this helps.

 

 

Regards

 

Will

[DanW]

i've tried that and it's still doing the same

[wlaidlaw]

Can you try the following from your exchange box:

 

Telnet to the postfix box on port 25

 

Simulate sending an email by typing the following.

 

helo exchange

mail from: [enter valid email address on exchange server]

rcpt to: [email protected]

data

test data

.

 

If you post back the output that will help to figure out what is happening.

 

Will

[DanW]

This is from my mac

 

220 ***.com ESMTP Postfix

HELO exchange

250 ***.com

MAIL From: wrightd@***>com

250 2.1.0 Ok

RCPT To: [email protected]

554 5.7.1 : Recipient address rejected: Access denied

 

--

 

this is from the exchange server

 

220 ***.com ESMTP Postfix

HELO EXchange

250 boothamschool.com

Mail From: wrightd@**.com

502 5.5.2 Error: command not recognized

RCPT to: [email protected]

503 5.5.1 Error: need MAIL command

Edited October 8, 2009 by DanW