[Dovecot] fine tuning for 10 users?

Hello,

How can i fine tune dovecot for less then 10 users? or is there no need?

Also, is there any smtp client which can be used with it for a open-source standalone server? i want very-small foot print+secure server, qmail and sendmail are dinos, and i felt xmail is trying to do everything. (as we are less then 10 users here.)

i liked round-cube for webmail.

i would appreciate all suggestions and pointers.

thank you. -B