> 1. This is a MIME message with charset=utf-8. Your mail client should
> display the two-byte UTF-8 sequence \317\200 in the message body as the
> Greek letter pi.
no it shouldn't, as nothing in the MIME standard requires support for UTF-8.
> 2. This message also includes a pi in the From line, right before the @:
>
> From: "D. J. Bernstein" <djb-pibounce-�<80>@cr.yp.to>
>
> Of course, there's no character-set declaration for that address, but
> your client should display it as UTF-8 anyway.
No it shouldn't, since addresses are defined to be ASCII in both RFC 822
and RFC 2822.
> 3. Try replying to this message. Your mail client and mail server should
> be able to handle the djb-pibounce-�<80>@cr.yp.to address.
My mail client treats the CF and 80 as invalid characters when composing
the reply. This is reasonable behavior given that they are illegal.
Keith