[Mimedefang] disable spamcheck for localhost and stream_by_domain problem

[Marcus]

Hi,

I'd like to disable spamassassin checks for all emails sent from the
host mimedefang is running on (= localhost). But how can I distinguish
between an email sent by localhost and an email which is resubmitted via
localhost because of mimedefang's stream_by_domain function. Checking
$RelayAddr for 127.0.0.1 doesn't help here.

Thanks,
Marcus