On Tue, Sep 30, 2008 at 04:07:36PM +0200, rc wrote:
> How do I tell Postfix to do 8bit->7bit conversion then?
Postfix only does 8bit->7bit conversion when content is declared to be
8bit. Postfix does not "detect" 8bit content by looking at the characters
in message bodies.
> I have tried some dirty tricks too: like trying (as a first step) to
> add content-type header lines to all outgoing emails with
> smtpd_sender_restrictions = regexp:/etc/postfix/access in my main.cf and
> /.*/ PREPEND mime-header-example: just an example 8bit to my access file
> (for a later postfix 8 to 7 conversion) but nothing is added at all to
> the headers.
This is too obscure. What are you *actually* doing and why? What is the
actual "8bit" mail that you need to downgrade to 7bit?
Postfix downgrades 8bit content to 7bit content when a non-composite
MIME part (not message/rfc822 or multipart/*) has an explicit
Content-Transfer-Encoding of "8bit".
Without any CTE headers in any leaf MIME parts of the message there will
be no "downgrade". In other words, Postfix downgrades content *declared*
to be 8bit.
--
Viktor.
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