I don't think that's what he's looking for. There are command-line mailers that are better suited to changing the From: header, otherwise If you really want to use mail(1) then i think your best option is to look at using the mta to re-write the From: addressi as suggested earlier, which is typically sendmail, otherwise the closest thing you can get to it is by using the -r option (i think).
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Jamie Paul Griffin
GPG Key: DF52D9B0
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