jbrown@herron.uucp (Jordan Brown) (04/01/89)
What is the "right" thing for an intelligent, RFC-822 conforming, mailer to do if it receives an old-style message, with only a From_ line? How do you (how do existing implementations) detect it? Do you assume it's happened if the header looks "wrong"? What's the right thing to do? Leave it alone? Phony up a header? Does it matter whether the message is for local delivery or is only a pass-through? As you might guess, I'm working on a mailer (the UUPC mailer) and trying to improve its behavior...