On Tue, Mar 08, 2011 at 10:55:25PM +0100, Ulrich Mierendorff wrote:
> I am using an after queue-content filter that signs outgoing emails
> (dkimproxy). My problem is that these messages are modified AFTER the
> signature was added which breaks the signature. As far as I can see, "\n"
> is replaced by "\r\n"
As required by SMTP standards. SMTP messages lines are separated by CRLF
not "CR" or "LF" alone.
> and "Content-Transfer-Encoding: 8bit" is replaced by
> "Content-Transfer-Encoding: quoted-printable".
This happens when the destination does not support 8bitmime.
> I have no problem with these
> modifications in general, but I would like if postfix could do these
> modifications BEFORE passing the mail to my filter. And I currently do not
> know how I can enable this.
Remove "8BITMIME" from the EHLO features of the proxy or the Postfix
SMTP server behind it (if the proxie's EHLO response is just copied
from downstream).
> My current work-around is to correctly format my emails in my software
> before they are sent to postfix so that the messages are not modified at
> all. But that is not the best solution.
Actually that *is* the best solution. Send 7-bit encoded mail with
correct line endings.
--
Viktor.
