Comtois, Andre a écrit :
> Hi everyone,
>
>
>
> First off, my apologies if this topic has been address before. I’ve
> been searching in google for days now and had mixed results in finding
> answers to my questions.
>
>
>
> To put it simply, I have installed postfix on a system running ubuntu
> 9.04. I would like to configure it as a front-end server for my
> exchange environment.
>
> The server would reside in the DMZ of my network.
>
> The server would accept emails from the internet and relay messages
> destined for valid recipients to the exchange server on my intranet.
>
> At this point I’m comfortable updating the recipient tables manually.
>
>
>
> I’m having mixed results getting this to work. My postfix server
> accepts emails and relays them to the exchange server just fine, however
> it also seems to have no issues relaying emails to gmail.com as well, so
> I’m not sure how to restrict it to only accepting messages destined for
> my domain.
>
>
As recommended in the list welcome message, follow the directions in the
DEBUG README. In particular:
- show output of 'postconf -n'
- show relevant logs (logs of mail accepted then relayed to gmail)
in the default setup, postfix only relays mail if
- client is in mynetworks, or
- domain is in mydestination, relay_domains, virtual_alias_domains,
virtual_mailbox_domains
this is what the default
smtpd_recipient_restrictions =
permit_mynetworks
reject_unauth_destination
does.
