Permanently Ban for Dovecot

[Onno Verbeek <info@xxxxxxxxxxxxxx>]

Hi All,

I’ve been reading this maillist for a while and now is the time, I’d like to ask you for advice.

I’ve setup my firewalls pretty tight, I just run into a problem with the firewall for dovecot.
When someone is trying to login, they get blocked after 5 try’s. I would like to ban the ip permanently, for now the ban seems to be cancelled after 4 hours. 

Does anyone know how to ban the ip permanently? 

Thanx in advance!
Onno 
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