tejas sarade:
> > Apart from mislabeling what is most-likely in fact a CTE of "8bit" rather
> > than binary, what problem does this actually cause?
>
> The problem is that Postfix frequently dropping connection of connection
> exchange server with error
> 502 5.5.2 Error: command not recognized
> I checked from the tcpdump that headers contain the following line.
> Content-Transfer-Encoding: binary
Fix the SMTP client configuration, or file a bug report with the
SMTP client vendor. The SMTP client must not send BINARYMIME content
unless the server announces it.
This is a basic principle of ESMTP, which is now almost 20 years
old, so someone should have learned to read in the meantime.
Wietse
