From: Sipos Gabor (no email)
Date: Tue Mar 01 2005 - 07:49:56 EST
It seems that I could make this thing working. We have only one
domain, so there is no need of transport maps (I think so, please
correct me if I'm wrong). I just added a relay_domains=my.domain and a
relayhost=[real.mail.server.ip], it seems that it's working correctly.
Does accepting mail for count as open relaying?
Should I set up the postmaster and abuse addresses locally, since my
real mail server actually does have these accounts?
Gabor Sipos
MB> 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?
MB> If you are confused by the documentation, please tell us how and what you
MB> find confusing.
MB> Basically just add your own domain(s) to relay_domains and use
MB> transport_maps to force routing of the messages to the final mail server.
MB> Also make sure to populate relay_recipient_maps with lookup table(s)
MB> containing all valid recipients in the domains listed in relay_domains.
MB> This part is optional, but you will become a bad backscattering net
MB> citizen if you don't implement it.
MB> http://www.postfix.org/STANDARD_CONFIGURATION_README.html#firewall
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