> Am 19.06.2015 um 01:56 schrieb John Levine <[email protected]>: > >> Concerning different things like user@ or user+foo@, CNAME is an option that >> works. > > You can certainly use CNAMEs for aliases, and they will work in tiny > examples. > > Given that there are over 500,000 ways to spell my single > unexceptional gmail address, which doesn't even have anything like > +foo extensions, I would think that the scaling issues would be > obvious.
My argument was not for case-sensitive emails. It was for: - different emails - local parts with or without extension All treated lowercase. Like real world I do not understand this discussion. RFCs for SMTP. ok. That is one point. Just think about paper mail. Would you expect that a letter arrives at your home, if people write you name in different ways? Yes of course! :-) So why this theoretical discussion about things that nobody on earth does use. If I answer your mail here and I write [email protected], do you expect it to arrive or do you say this is somebody else? I bet you expect the mail has to arrive in your mailbox and nowhere else. No matter what the RFCs say. You expect this mail to land at your mailbox. So this is the reason why I say, local part for PGP and SMIMEA MUST be lowercase looked up. :-) Christian N.B. sorry for my english. May sound harsh. Isn’t meant so.
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