Adam Hardy on 21/01/10 17:36, wrote:
Camaleón on 21/01/10 16:27, wrote:
The point is that I don't want to have port 25 open to the world,
since I don't want to receive any emails on this system, I just want
to send.
[snipped]
That is the standard setup for Postfix. But that does not mean your
host is an acting as an "open relay". Anyway, you can also tweak that
behaviour.
All I'm saying is that I don't need this, and I'd like to find a way to
shut it down whilst leaving the outbound mail delivery intact.
mynetworks_style = host
or
mynetworks = 127.0.0.0/8
I am using mynetworks_style already but it doesn't stop SMTP listening
on port 25.
I guess this is just a relatively new situation coming with the advent
of vservers that just isn't possible.
I have set smtp_client_restrictions = reject so at least postfix
responds to external SMTP requests with an aggressive sounding "Client
host rejected: access denied" message.
One small problem having postfix listen unnecessarily to the whole world is that
syslog logs all spam merchants attempts to abuse my postfix as an open relay. I
guess I can ignore them but I wish I didn't even get them.
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