On Sat, Mar 27, 2010 at 08:53:03PM -0400, Wietse Venema wrote:

> Currently, sites that send valid UTF-8 in MAIL/RCPT commands can
> make meaningful LDAP queries in Postfix.  Lots of MTAs are 8-bit
> clean internally, so this can actually work today.
> 
> Do we want to remove this ability from Postfix, or should we add
> a valid_utf_8() routine in anticipation of a future standardization
> of UTF8SMTP?

I am a bit reluctant at this time to assume that untyped data coming in
that looks like UTF-8, really is UTF-8. Even if the LDAP lookup returns
plausibly useful results, will the UTF-8 envelope survive related
processing in Postfix?

        - PCRE lookups don't currently request UTF-8 support

        - Logs don't support non-destructive recording of UTF-8
          envelopes.

        - What is the character-set of mailbox content?

        - What character set should pipe(8) commands expect?

So I think we are quite far from really supporting UTF-8, and issues
deeper than LDAP table support probably need to be handled first.

-- 
        Viktor.

P.S. Morgan Stanley is looking for a New York City based, Senior Unix
system/email administrator to architect and sustain our perimeter email
environment.  If you are interested, please drop me a note.

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