[Dovecot] Hardware infrastructure for email system

[Wojciech Puchar]

>>
>> it is already enormous overshoot in hardware specs. And i do not really catch why you have "4 in parallel" servers.
>> And finally i cannot understand this dividing of servers just to merging it back using VMWare.
>
> because it is a big difference if you have anything in a single
> machine or splittet in virtual machines - you can move them at
> runtime to different hosts and if you run out of ressources

ok - for me it is just likes. You have higher change to have the need to 
move at the first place doing this :)