vqp wrote:
> I had already configured the client to save the outgoing messages in
> the IMAP folder and it worked. But I'm looking for a server-side
> solution.
>

While I agree with Dave's approach, it will add unnecessary complexity
to the qmail server. I would start by checking how your clients systems
are setup. Are they in a domain (AD)? Have you setup policies that
deal with configuration of the Outlook Client?

Configuring the user profile to be roaming may do the same thing.

Ignoring for a very, very, very short time the group in which this post
is being made, why are you considering migrating the setup from Exchange
to qmail?

You should start with your answer. The configuration of the user email
clients would be secondary. As long as you setup an IMAP server that
has access to the Maildir and create the proper configuration entry for
the IMAP server you chose to use for the handling of "Sent Items" all
should be fine for the users.

Storing the sent items on the server means that you will continually
need to increase the amount of space available to exchange. Since
access is via IMAP, the storage requirements continually grow.

AK