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unknown non authenticate mail sender

Posted: Mon Aug 13, 2018 6:34 pm
by sunil_ghimire
If user password compromised differnet domian sends mails to ramdom users? how to solve it

Re: unknown non authenticate mail sender

Posted: Mon Sep 03, 2018 6:51 am
by rishi
I am also facing similar problem. can anyone help please.
zimbra version 8.0.7 FOSS edition

Re: unknown non authenticate mail sender

Posted: Mon Sep 03, 2018 8:06 am
by pup_seba
Change the password for the user.

After doing that, enable COS policies to block accounts based on failed login attempts.

Re: unknown non authenticate mail sender

Posted: Mon Sep 03, 2018 10:03 am
by gabrieles
And restart MTAs, to kill active sessions, or previously authenticated users can continue to send even after a password change.