Re: SMTP and unicode

From: Hans Aberg (
Date: Tue May 17 2005 - 15:29:11 CDT

  • Next message: Dean Harding: "RE: SMTP and unicode"

    At 21:53 +0200 2005/05/17, Stephane Bortzmeyer wrote:
    >The default channel in SMTP is only 7-bits wide, for historical
    >reasons. Almost all the SMTP servers, for many, many years, accept to
    >properly carry 8-bits data (wether UTF-8 or else). See RFC 2821, "2.4
    >General Syntax Principles and Transaction Model".

    When 8-bit mail servers started to appear in the beginning of the
    1990'ies, it probed difficult to ensure that all servers the mail was
    passed through were 8-bit. Thus, using an 8-bit character encoding,
    the mail frequently got corrupted. Therefore, people switched to
    MIME, which encodes 8-bit data into 7-bit data. That situation seem
    to remain.

    One should find a method to kill of any mail servers that still
    zeroes out the 8'th bit. Then one can send UTF-8 mail without using

       Hans Aberg

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