[Mimedefang] <kein Betreff>

[Klaus Meyer]

Hello list,

we are using outlook as email client in our company. Outlook is configured to determine the encoding of the email automatically. 
If an email is send without special characters (öäüÖÄÜ) outlook choose us_ascii as encoding. Now i append a textboilerplate with mimedefang 
with contains such special characters. The receiving client does not see this special characters because the content-type of the email is not iso-8859-1.
I tried to change the header with action_change_header("Content-Type","text/plain;\n\tcharset=\"iso-8859-1\""); but mimedefang rebuilds the header with us_ascii

Logfile:

mimedefang.pl[27331]: filter: l276ug8J027333:  append_text_boilerplate=1
sendmail[27333]: l276ug8J027333: Milter change: header  Content-Type: from text/plain;\n\tcharset="us-ascii" to text/plain;\n\tcharset="iso-8859-1"
sendmail[27333]: l276ug8J027333: Milter change: header  Content-Type: from text/plain;\n\tcharset="iso-8859-1" to text/plain;\n\tcharset="us-ascii"
sendmail[27333]: l276ug8J027333: Milter change: header  MIME-Version: from 1.0 to 1.0
sendmail[27333]: l276ug8J027333: Milter change: header  Content-Transfer-Encoding: from 7bit to 7bit
sendmail[27333]: l276ug8J027333: Milter message: body replaced
sendmail[27333]: l276ug8J027333: Milter add: header: X-Scanned-By: MIMEDefang 2.61 on 10.126.254.131

Any clues how i can manage this problem? I do not want to change the behavior of outlook because we have about 800 clients.

Thanks for help.

Klaus
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