[Dovecot] About a simultaneous session of Dovecot(IMAP)

The construction of the mail server with Postfix+Dovecot(IMAP) is examined.

・The number of mailboxes is about 1000. ・The reception protocol uses IMAP and the Maildir form. ・OS is Redhat Enterprise Linux ES4. ・MUA uses Outlook Express. ・Postfix and Dovecot use latest Ver.

In the above-mentioned environment, it is understanding person. how much the number of maximum sessions (number of people) that can be used at the same time becomes from MUA (When grounds of the calculation are understood, it is the best. )