Hi,
I'm running postfix as SMTP-server and dovecot as IMAP-server. The server has multiple IPs, and postfix is configured that every domain is using a separate IPv4-address. Examle: foo1.com --> 11.22.33.44 foo2.com --> 22.33.44.55 foo3.com --> 33.44.55.66 bar.org --> 66.77.88.99
The hostname of the server is: mail.bar.org
Now I have a request from one of my customers, who is using 3 different domains:
- foo1.com
- foo2.com
- foo3.com
If he receives a mail to "user@foo1.com", the header of the mail looks like this:
Return-Path: <somebody@web.de>
Delivered-To: <user@foo1.com>(II) Received: from mail.bar.org by mail.bar.org (Dovecot) with LMTP id V[...]wAAvP/pag for <user@foo1.com>; Sun, 29 Nov 2015 13:45:37 +0100 (I) Received: from mout.web.de (mout.web.de [212.227.17.11]) (using TLSv1.2 with cipher ECDHE-[...]-SHA384 (256/256 bits)) (No client certificate requested) by mail.foo1.com (Postfix) with ESMTPS id A[...]9 for <user@foo1.com>; Sun, 29 Nov 2015 13:45:36 +0100 (CET)
As you can see in (I), postfix receives the mail and added a header with the correct hostname: mail.foo1.com But dovecot adds an additional header (see II). Here, the hostname of the system is visible. This is correct, because dovecot -n | grep -i hostname returns: hostname = mail.bar.org
But my customer asks me if it's possible that only his domain is visible in the header: So, if somebody sends a mail to "user@foo1.com", only the hostname "mail.foo1.com" should be visible in the mail header. And if somebody sends a mail to "user@foo2.com", only the hostname "mail.foo2.com" should be visible in the mail header.
Is there a way to do this?
Thank you in advance.
Kind regards
Thilo
On 12/17/2015 11:51 AM, Thilo Engelbracht wrote:
But my customer asks me if it's possible that only his domain is visible in the header: So, if somebody sends a mail to "user@foo1.com", only the hostname "mail.foo1.com" should be visible in the mail header. And if somebody sends a mail to "user@foo2.com", only the hostname "mail.foo2.com" should be visible in the mail header.
Is there a way to do this?
The solution is to use multiple postfix instances rather than adding lines to master.cf. http://www.postfix.org/MULTI_INSTANCE_README.html
-- Noel Jones
Am 17.12.2015 um 16:16 schrieb Noel <noeldude@gmail.com>:
On 12/17/2015 11:51 AM, Thilo Engelbracht wrote:
But my customer asks me if it's possible that only his domain is visible in the header: So, if somebody sends a mail to "user@foo1.com", only the hostname "mail.foo1.com" should be visible in the mail header. And if somebody sends a mail to "user@foo2.com", only the hostname "mail.foo2.com" should be visible in the mail header.
Is there a way to do this?
The solution is to use multiple postfix instances rather than adding lines to master.cf. http://www.postfix.org/MULTI_INSTANCE_README.html
Hi Noel,
I already configured postfix with multiple instances. It works fine! The problem is that DOVECOT adds a header line with the "normal" hostname - of course, this is correct. But my customer asks me if there if a way that only his domain is visible. So I asked if there is a way to define a hostname multiple times in the dovecot-configuration. I'm searching for a solution like multiple ssl certificates. Here you can define a ssl certificate for each IP-address: local 11.22.33.44 { ssl_cert = </path/to/foo1.com.crt ssl_key = </path/to/foo1.com.key } local 22.33.44.55 { ssl_cert = </path/to/foo2.com.crt ssl_key = </path/to/foo2.com.key }
-- Noel Jones
Kind regards,
Thilo
On 12/18/2015 12:19 AM, Thilo Engelbracht wrote:
Am 17.12.2015 um 16:16 schrieb Noel <noeldude@gmail.com>:
On 12/17/2015 11:51 AM, Thilo Engelbracht wrote:
But my customer asks me if it's possible that only his domain is visible in the header: So, if somebody sends a mail to "user@foo1.com", only the hostname "mail.foo1.com" should be visible in the mail header. And if somebody sends a mail to "user@foo2.com", only the hostname "mail.foo2.com" should be visible in the mail header.
Is there a way to do this?
The solution is to use multiple postfix instances rather than adding lines to master.cf. http://www.postfix.org/MULTI_INSTANCE_README.html Hi Noel,
I already configured postfix with multiple instances. It works fine! The problem is that DOVECOT adds a header line with the "normal" hostname
The problem is you're using the same "normal" IP to connect to dovecot. Each postfix instance needs its own lmtp_bind_address and its own internal IP to connect to dovecot. Sorry I didn't make that clear earlier.
-- Noel Jones
participants (2)
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Noel
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Thilo Engelbracht