Re: valid characters in user names- esp. compatibility characters

From: Jungshik Shin (
Date: Thu Aug 12 2004 - 21:59:42 CDT

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    Mike Ayers wrote:
    > > [] On Behalf Of Markus Scherer
    > > Sent: Thursday, August 12, 2004 4:20 PM
    > > Another encoding, standardized for much longer, is what IMAP
    > > uses for mailbox names. I think it does not have a standard
    > > charset name, but it's described in one of the IMAP RFCs.
    > I believe that you are referring to RFC 2047. It does not have
    > a charset name because it is not a charset, but a TES. It's a MIME RFC,
    > if that makes a difference:

    No, Markus meant a variant of UTF-7 (it's '7' not '8' in case somebody
    thinks I'm making a typo) used by IMAP for mailbox names. See

    It doesn't have a MIME charset designation because it's not supposed to
    be used for 'message' exchange (mail or text/*).


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