From: Magnus Bäck (no email)
Date: Tue Mar 01 2005 - 04:05:05 EST
On Tue, March 1, 2005 9:26 am, Sipos Gabor said:
> We are using an SMTP/POP mailing solution that can not filter
> attachments. So, since our firewall is a debian linux, I'm planning to
> put a content filter in front of the server. The configuration would
> look like this:
>
> |internet| ---> |postfix box| ----> |real mail server|
>
> There will be NO mailboxes on the postfix server, so I need everything
> to be relayed to the mail server.
>
> I would not want to create an open relay, but I got a little bit of
> confused with the postfix doc, so exactly how should I configure
> postfix to relay mail _only_ destined for my domain name?
If you are confused by the documentation, please tell us how and what you
find confusing.
Basically just add your own domain(s) to relay_domains and use
transport_maps to force routing of the messages to the final mail server.
Also make sure to populate relay_recipient_maps with lookup table(s)
containing all valid recipients in the domains listed in relay_domains.
This part is optional, but you will become a bad backscattering net
citizen if you don't implement it.
http://www.postfix.org/STANDARD_CONFIGURATION_README.html#firewall
-- Magnus Bäck
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