Non-ASCII chars in MAIL FROM envelope

[Simon Matter]

> Hello.
>
> See http://archives.neohapsis.com/archives/postfix/2008-01/1321.html

Yes, but that will block possibly valid mail. Of course I don't accept
mail with non-ASCII RCPT TO addresses because Cyrus doesn't allow it, but
I should accept non-ASCII MAIL FROM addresses if they are valid. But Cyrus
also refuses them. That's the real problem.

Simon