On Thu, 06 May 2010 18:16:01 +0300
Stas Sușcov <s...@nerd.ro> wrote:

> Hi,
> we were using DSPAM and Postfix for about a year and now we would like
> to connect the rest of our MX servers to it.
> We got dspam on the main mailserver and we would like to connect a
> secondary server to it, so I set dspam to listen to a port, changed
> master.cf to use that new port, in short the setup is pretty much the
> same I documented here:
> https://help.ubuntu.com/community/Postfix/Dspam
> 
> The problem is with the secondary server in master.cf, where I mush tell
> Postfix on what port to listen for content from dspam. How do I teach
> dspam to respond to the same ip from what it received a new submission?
> Secondary server Postfix, receives no response from submitted entries.
> 
Might I quickly repeat what I have understood?

Example:
MX 1 has IP 1.2.3.4
MX 2 has IP 5.6.7.8
DSPAM has IP 9.7.5.3

DSPAM is behind port 11124 on IP 9.7.5.3

Now you have set in MX 1 to deliver to DSPAM. Something like this:
/./   FILTER lmtp:[9.7.5.3]:11124

And on MX 2 you have done the same:
/./   FILTER lmtp:[9.7.5.3]:11124

And now you would like DSPAM to deliver back to the IP where the original 
message came from? Right? In case of MX 1 you would like DSPAM to deliver to 
1.2.3.4:10024 and for MX 2 you would like DSPAM to deliver to 5.6.7.8:10024. 
Right?


> I found this:
> `If you would like to set up DeliveryHost's on a per-domain basis, use
> the syntax: DeliveryHost.domain.com 1.2.3.4`
> 
> What's the use-case of such a directive in dspam.conf?
> 
For example MX1 is responsible for the following domains:
oracle.com
mysql.com
postgres.org

And for example MX2 is responsible for the following domains:
microsoft.com
ibm.com
novell.com

To get DSPAM to deliver messages to the right MX server you would then add 
something like this to dspam.conf:

# Deliver @oracle.com, @mysql.com and @postgresql.org to MX 1
DeliveryHost.oracle.com         1.2.3.4
DeliveryHost.mysql.com          1.2.3.4
DeliveryHost.postgres.org       1.2.3.4

# Deliver @microsoft.com, @ibm.com and @novell.com to MX 2
DeliveryHost.microsoft.com      5.6.7.8
DeliveryHost.ibm.com            5.6.7.8
DeliveryHost.novell.com         5.6.7.8

# Deliver anything else to MX 1
DeliveryHost                    1.2.3.4


> Thanks in advance.
> 
> -- 
> ()  Campania Panglicii în ASCII
> /\  http://www.asciiribbon.org/
> 
> 
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