One more think you'd like to try, for you mentioned pine:
You want to call pine when someone clicks on a mailto: link in your page? There is a chance for them to get that done. The package you are searching for is muttzilla. Although it's called muttzilla it is simply a plugin for netscape that calls any program you like. You need to change the users preferences.js in their ~/.netscape directory, though. But it might be something many are interested :)
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use signature; signature(" So long\nAlfie");