John Fawcett:
> The output you sent shows what the smtpd server replies to the client
> and shows a different behaviour between sendmail and postfix when the
> milter uses? smfi_setmlreply(). It does not show that postfix is
> receiving multiple reply lines from the milter and folding them, though
> of course you may be right about it.
>
> If you want to investigate this further you could turn on verbose
> logging on the smtpd and cleanup processes and you will see a bit more
> info about what is happening. If I'm reading this correctly the end of
> message milter is being evaluated in the cleanup process
> in?cleanup_milter_apply for event SMFIC_BODYEOB. The cleanup process
> then sends the reject reason to the smtpd process.
I am investigating this in my copious spare time. The channel from
cleanup to smtpd was originally designed for single-line responses
from header/body_checks. If that is the problem then I'll devise a
workaround for existing code, and a proper solution for Postfix 3,5
and onwards.
Wietse
