forward and procmail

What shall i put in my .forward file to forward only the sender and
the subject of the mail. I have heard that i shall use procmail, but i
can't get i working.

Thanks

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Anders Giversen
giversen(_at_)cs(_dot_)auc(_dot_)dk, giversen(_at_)iname(_dot_)com
tlf : 20 84 69 92
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