Hi Wietse,
I tried your solution with the content-filter option and I have the
following in master.cf:
127.0.0.1:25 inet n - n - - smtpd
-o content_filter=smtp:[wp180.webpack.hosteurope.de:25]
-o local_recipient_maps=
-o relay_recipient_maps=
-o relay_domains=
-o transport_maps=
-o virtual_alias_maps=
-o mynetworks=127.0.0.0/8
-o mynetworks_style=host
-o inet_interfaces=127.0.0.1
#-o smtpd_recipient_restrictions=permit_mynetworks
#-o parent_domain_matches_subdomains=
-o smtp_sasl_auth_enable=yes
#-o smtp_sasl_security_options=noplaintext noanonymous
-o smtp_sasl_password_maps=hash:/etc/postfix/sasl_gr_smarthost
-o relayhost=wp180.webpack.hosteurope.de:25
and in this file (/etc/postfix/sasl_gr_smarthost) you see
wp180.webpack.hosteurope.de <user> <password>
and now in the log I can now see some thing like this:
Sep 25 14:11:17 h1866372 postfix/qmgr[17899]: warning: connect to
transport [wp180.webpack.hosteurope.de: No such file or directory
Does anybody has any ideas? I double checked it, but can't find the
solution...
Thanks a lot in advance,
Thomas
> Thomas Trepper:
>> Hi all,
>>
>> I hope I am right here, I have the following problem and can't find a
>> solution so I would like to ask you for this:
>>
>> I have a server (ubuntu 8.04.3-server) with one network interface and
>> two
>> IPs on it and on top one postfix (2.5.1 installation. I would like
>> postfix
>> to relay to different relayshost per interface like this:
>>
>> interface 10.0.0.1 ----> relay to mx0.abc.com (depending on domains the
>> relay is accepting)
>> interface 10.0.0.2 ----> relay to mx0.xyz.com (just all)
>>
>> Does anbody know, if and how this might be possible?
>
> There are many ways.
>
> First, there is no need to use multiple server IP addresses.
> Normally, people use a standard Postfix gateway configuration and
> choose the down-stream MX host based on the recipient address.
> http://www.postfix.org/STANDARD_CONFIGURATION_README.html#backup
>
> If you must insist on using multiple server IP addresses, Postfix
> 2.6 provides tools to manage multiple Postfix instances (each having
> their own relayhost etc. settings). With 2.5 you'd have to roll
> your own support.
> http://www.postfix.org/MULTI_INSTANCE_README.html
>
> Otherwise, you may be able to fake this with one Postfix instance
> and the content_filter command (content filters override relayhost).
>
> /etc/postfix/master.cf:
> 10.0.0.1:smtp .. .. .. .. .. .. smtpd -o
> content_filter=smtp:[mx0.abc.com]
> 10.0.0.2:smtp .. .. .. .. .. .. smtpd -o
> content_filter=smtp:[mx0.xyz.com]
>
> If you are trying to do clever things with Postfix on a multi-homed
> firewall with IP forwarding turned off, don't fall into this trap:
> http://www.postfix.org/postconf.5.html#inet_interfaces
>
> Wietse
>
