[Dovecot] Howto add another disk storage

[Wojciech Puchar]

>>
>> ~ James.
>
> Thank you, this is a valid suggestion, especially since it could be
> done directly with some SQL magic in dovecot config file.
> I will consider this option !
>
as i always run dovecot using standard unix auth/password mechanism and 
mail user is always unix user, then it is rather trivial. editing 
automatically /etc/master.passwd to change home directories depending of 
your needs and then moving data is simple and you may do any way.

Even without this i would recommend your way of spreading users by 
human-understandable way.

i would take 2 first letters, mak groups out of them to have roughly same 
mount of users or disk space and then move.