Re: [exim] exim block auth (geoip)

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Author: Lena
Date:  
To: exim-users
Subject: Re: [exim] exim block auth (geoip)
> From: Emanuel Gonzalez

> lately we are suffering from dictionary attacks, as a prevention method
> I use "fail2ban", but in some cases users use passwords that are
> easy to guess and are used to send spam through bots.


This code blocks both dictionary attacks and stolen passwords used for spam:
https://github.com/Exim/exim/wiki/BlockCracking