pre SUMMARY: UW-IMAP server behavior

Thanks to Leonid Massarskiy and Alan Thew, their replies below.

But actually it did not solve my problem , maybe its my fault, I did not
explain the whole story.
We have an eFax application installed on a different machine, it logs on to
the IMAP account installed on the Solaris 2.6 and reads messages off the
inbox. This application does multiple access to the account, there is no
problem in that.
The problem is  the supplier of this eFax application is saying  their
software is not functioning properly with UW-IMAP be cause it has some
connection time out which causes the IMAP session to break . I thought if
there are configurations to be done on the IMAP server to solve this problem
?

Alan Thew wrote ,
UW has a 30 min inactivity time out by default, is this what you see? We've
run with it for ages with no problem.
------
Leonid Massarskiy wrote,
IMAP timeouts can occur when user have a huge mailbox, which imapd is not
able
to process within the timeout period set by the mail client.
You can handle it either by having users who have huge mailboxes clean them
up
or by increasing timeout settings in their mail clients.

> I installed an IMAP4 server (UW-IMAP4rev1 2000.284) on Solaris 2.6. Its
> working fine, IMAP clients can access their mailboxes and retrieve their
> mail, but I'm having a problem of connection time out on IMAP sessions.
When
> the connection time out occurs it logs off the current session.
> I'm not sure if this timeout is the responsibility of the OS or IMAP
server.
> Any ideas how can I stop this time out from happening?.
> Thanks
>
> Hisham Al Saad
> Office : +973 883973
> Fax    : +973 9103973
> Batelco
> Bahrain