Hi all,
I have the situation where a spammer knows the username and password of
an account and is sending spam via that account. I can change the
password, however, this account is shared amongst many users and I'd
rather not ask all the users to change their password. (Computer
literacy is becoming a rare quality these days ;))
Our postfix server is behind a firewall. So the spammer always connects
via the gateway. This shared account need not be accessible from outside
the network. So I don't mind rejecting all email from that user when
originating from the gateway.
I've did some searches and am pretty familiar with the docs, yet nothing
strikes me as a solution to this. Is rejecting a sender when it is from
a certain IP address possible?
Any advice appreciated.
Kind regards,
Simon
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