Dovecot password policy

[Michael Fox]

> A lot of “bots” try very simple passwords say less than X
> characters; over and over and over again before they give up.
> 
> I realize Dovecot mitigates this by slowing them down; but always nice to
> have another optional layer of defense to clip this kind of garbage closer
> to the door.

Check out fail2ban.  It's very useful for that sort of repeated bot attack.

Michael