[SOLVED] Zimbra + postfix + mailman

[sjsobol]

For the purposes of this discussion:

123.45.67.8 = myZimbraServer.myDomain.com = the live Zimbra server, running out of /opt/zimbra. It's Open Source version 5.0.14 GA, running on CentOS 5.

123.45.67.9 = myPostfixServer.myDomain.com = a completely separate postfix instance running on the same server. I needed to move mailman off an old server, this is the only server I have and the instructions for integrating Zimbra with postfix won't work... my server's hostname is set up as a Zimbra virtual domain. Postfix was installed from the stock CentOS 5 rpm and resides in /usr/local/bin, with config in /etc/postfix.

The mailing list domain is lists.myDomain.com.

Zimbra works great.
I also have mailman working with the standalone postfix instance.

Here's the problem:

I can send mail to my mailman lists from outside the server (for example, from a gmail account).

If I log into webmail and try to send mail from my own email account, the mail bounces... "mail loops back to me."

Zimbra is apparently treating mail to lists.myDomain.com as local. I know this because I get the same bounce even if I turn off the standalone postfix.

So... how do I get zimbra to send mail to lists.myDomain.com to the standalone postfix? This is the last piece of the puzzle - everything else works beautifully.

Thanks,
Steve

[phoenix]

Split Domain - Zimbra :: Wiki

[sjsobol]

Originally Posted by phoenix

Split Domain - Zimbra :: Wiki

That's pretty simple. What would be even easier is if I could set zimbraMailTransport per domain instead of per mailbox... that way I can take full advantage of Mailman's ability to automatically create aliases for new lists.

[sjsobol]

That's pretty simple. What would be even easier is if I could set zimbraMailTransport per domain instead of per mailbox... that way I can take full advantage of Mailman's ability to automatically create aliases for new lists.

I now see that you CAN. Excellent.

[phoenix]

Search bugzilla for the word 'mailman' and vote on anything you find.

[sjsobol]

Hm.

Setting zimbraMailTransport = myPostfixServer.myDomain.com results in the same bounce message, but now it's saying "mail for myPostfixServer.myDomain.com loops back to myself"

If I use the IP address, the message is "mail for 123.45.67.9 loops back to myself"

[sjsobol]

Originally Posted by sjsobol

Hm.

Setting zimbraMailTransport = myPostfixServer.myDomain.com results in the same bounce message, but now it's saying "mail for myPostfixServer.myDomain.com loops back to myself"

If I use the IP address, the message is "mail for 123.45.67.9 loops back to myself"

You know, now I'm wondering why I need to use a "Split Domain" setup. lists.myDomain.com has a public MX record that points at myPostfixServer.myDomain.com (123.45.67.9). Zimbra doesn't accept any connections on that IP address... not for SMTP, not for any other service.

[sjsobol]

Originally Posted by sjsobol

You know, now I'm wondering why I need to use a "Split Domain" setup. lists.myDomain.com has a public MX record that points at myPostfixServer.myDomain.com (123.45.67.9). Zimbra doesn't accept any connections on that IP address... not for SMTP, not for any other service.

So I ask myself, "what would cause Postfix to treat mail as local mail," and the answer suddenly becomes very clear.

I feel stupid. I really should have figured this out before. My only excuse is that I'd never touched Postfix before I installed Zimbra (and I only started mucking around with the Postfix configs a couple weeks ago).

Zimbra was set up this way:

inet_interfaces=all

Duh! No wonder Zimbra's trying to process mail for lists.MyDomain.com.

Here's what I did:

In Zimbra's main.cf:

inet_interfaces = 123.45.67.8, 127.0.0.1
mydestination = localhost

(This works because all of the Zimbra-hosted domains are virtual domains.)

In the standalone Postfix's main.cf:

inet_interfaces = 123.45.67.9
mydestination = lists.MyDomain.com myPostfixServer.myDomain.com

And the Split Domain setup is NOT necessary.

Thank you for your time, Phoenix; you did actually help me get to the correct answer.

[sreemadhavam]

I dont know whether it is a repeatation or not .

According to zimbra wiki, as it is not supported also we can install mailman on the ZCS system.
As i have littel lists to manage i wish to do the same .

i installed and it is working fne.
when i try to send mail to lists@domain.com , it is getbounced to me

lists@hostname.domain.com: mail for hostname.domain.com loops back to myself

I came to know from wiki ther is an option ,
zimbraMailTransport smtp:ZIMBRA_MTA_HOST: ALT_SMTP_PORT

but how can see the alt smtp port and after that how can set the value?
can i edit an y file ?

pleease help me .

[sjsobol]

Originally Posted by sreemadhavam

I dont know whether it is a repeatation or not .

According to zimbra wiki, as it is not supported also we can install mailman on the ZCS system.
As i have littel lists to manage i wish to do the same .

i installed and it is working fne.
when i try to send mail to lists@domain.com , it is getbounced to me

lists@hostname.domain.com: mail for hostname.domain.com loops back to myself

I had the same problem, running Zimbra on one IP and Postfix on another. The answer is in this thread...