[Dovecot] POP3 dictionary attacks

[Bruce Bodger]

On Aug 15, 2008, at 5:39 PM, Charles Marcus wrote:

> You're kidding, right?
>
> Dictionary attacks are a fact of life these days.
>
> Just install some kind of blocking on your firewall (fail2ban is a  
> good
> one), and let it take care of the worst of it...

fail2ban will not work for this as the incoming ip addresses are  
spoofed.  fail2ban would end up blocking legitimate servers.

B. Bodger