Script to add permanent "reply-to" address in Mail


I have a permanent forwarding e-mail address that I want to show up in the “reply-to” header each time I send an e-mail. I don’t want to have to manually fill it in each time. I’ve tried going to the preferences for my e-mail account and changing the address listed there to my forwarding address, but for whatever reason my e-mail provider won’t allow it because it causes an error and messages can’t be sent.

Anyone hear of an applescript that would automate this for me? I just switced from Entourage, and unfortunately now I’m thinking of switching back. I hear Tiger will do this, but I can’t wait till then!

Using Mail app 1.3.9 with OS 10.3.8.

Thanks for your help!