Not sure if this has been covered before, I did a search but didn’t turn up anything I’m looking for a way of getting SpamAssassin to scan for (and reject) outgoing spam from a server.
We’ve had a couple of instances where email accounts have been compromised (both through speak phishing attacks) and on both occasions we had to deal with the mitigations team at Microsoft to get the server IP removed from their blacklist.
I think (please correct me if I’m wrong!) that having SpamAssassin scan outgoing emails would have prevented obviously spam emails from getting sent by the server in the first place?
Am I right? Can anyone point me in the right direction?