There isn't.
Good to know.
As to popularity, I use "mutt", which already supports setting the envelope sender based on the "From:" header, passing the desired envelope sender to sendmail(1).
Huh, I didn't know it does that. I've only tried sending with sendmail(1) via the command line before incorporating it into my setup, to make sure everything works beforehand. That'll help!
I do think this feature rather belongs in the MUA.
Fair enough. Thanks! -- witcher
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