Enable your Out of Office Assistant and configure a rule in it to forward
the messages. Whether or not and to what extend you can do this depends on
your Outlook version, Exchange version and the configuration of both.

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Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
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> I wish to set up a forwarding rule that will forward messages coming into
> my
[quoted text clipped - 3 lines]
> but
> not between 9am and 6pm.