unknown non authenticate mail sender

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sunil_ghimire
Posts: 13
Joined: Thu Aug 02, 2018 12:45 pm

unknown non authenticate mail sender

Postby sunil_ghimire » Mon Aug 13, 2018 6:34 pm

If user password compromised differnet domian sends mails to ramdom users? how to solve it


rishi
Posts: 5
Joined: Mon Aug 27, 2018 11:34 am

Re: unknown non authenticate mail sender

Postby rishi » Mon Sep 03, 2018 6:51 am

I am also facing similar problem. can anyone help please.
zimbra version 8.0.7 FOSS edition
pup_seba
Outstanding Member
Outstanding Member
Posts: 395
Joined: Sat Sep 13, 2014 2:43 am
Location: Tarragona - Spain

Re: unknown non authenticate mail sender

Postby pup_seba » Mon Sep 03, 2018 8:06 am

Change the password for the user.

After doing that, enable COS policies to block accounts based on failed login attempts.
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gabrieles
Posts: 39
Joined: Tue Feb 14, 2017 9:40 am

Re: unknown non authenticate mail sender

Postby gabrieles » Mon Sep 03, 2018 10:03 am

And restart MTAs, to kill active sessions, or previously authenticated users can continue to send even after a password change.

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