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Suggestion for future versions of SmarterMail...
When user account gets hacked, we of course detect that with various abuse detection rules, and then change the password. The problem is that in a distributed form of this attack (the usual vector), dozens, maybe hundreds of SMTP connections are opened with that user's credentials...all of which are actively sending spam. The suggestion I would propose is that, like the RBL rules that detect a change and don't require a server restart, the SMTP process would behave the same way.
Currently, we have to stop and start the SMTP process to drop all open SMTP connections opened by the hacked account. It would be a great feature if the password change could be detected, and maybe via tick box, all open SMTP connections for the affected account be dropped.