Luca Fornasari:
> Greetings everyone,
>
> I have an old Postfix 2.3.3 installation where the built-in MIME
> parser is modifying (adjust) wrongly formatted MIME messages while
> relaying them.
>
> This is not happening on a newer Postfix 2.6.6 installation and I
> can't find any configuration parameter to restore the old behavior (as
> I did for the missing headers).
>
> Unfortunately I'm dealing with a complex environment where correcting
> bad coding behavior is not easy at all.
>
> Can anyone confirm my findings and maybe elaborate further?
>
> Thanks in advance for any information/comments.
If the problem is with email addresses in message headers, you could
try setting local_header_rewrite_clients=static:all. Otherwise, you
could use header_checks to "fix" malformed headers.
Postfix promises to deliver correctly-formatted information correctly,
without breaking compatibility with existing configurations, but
those promises are not applicable to malformed information.
Wietse
