Forwarding from sent items, exchange & pop3 problem

[pk]

Hello,

we have exchange 2003 set up for calendars only, and all email is sent and
recived via external pop3 provider.

The problem is that when you foward/reply a message from sent items ite uses
exchange instead if the default pop3 account. When forwarding/replying from
inbox, it uses the pop3 account like it should.

Is there a fix to this?
I can't remember what service pack is installed, but all versions are Office
2003 Smal business edition. Clients are running windows xp pro sp2.
Exchange is 2003 std edition, don't remember the service pack level.

Thanks in advance.