Hallo ram,
Op vrijdag 01 augustus 2008 schreef ram aan [EMAIL PROTECTED]:
>> Occasionally external systems are tying to send mail with a
>> faked sender address via my system. So far no harm is done,
>> ad they have not been able to create a real user name. But
>> I would like to stop them before they use my mail system,
>> as soon as they make contact. How can I do this?
ra> I dont see any reason for you to worry. You are doing a
ra> reject_unauth_destination already
It's not the destination I'm worried about, it's the sender.
There is a [small] possibility that the culprit guesses a real
user name on my system and then sends spam or other unpleasant
things across the world. I would not like that...
ra> There is no way to stop *all* unauthorized connections ( as soon
ra> as they connect ? ).
That was not very well formulated, sorry. Obviously they have
to make contact before I can see who they are. But I would
like postfix to see as soon as possible that my host name is
used illegally and reject that message straight away.
Groeten,
Hans.
jdh punt beekhuizen bij duinheks punt nl
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