On 12/8/2016 10:54 AM, Marcus Schopen wrote:
Hi,
some of my users forward external mails to my host. In some cases those
forwarding hosts don't filter spam. How do I parse back through
forwarding headers to find the true source IP and run dnsrbl checks on
that IP. I don't want to reject those mails in case of spam, so that the
forwarding host will become a backscatter, but just marking them. I
tried to set the forwarding host IPs to trusted_networks, which helps
with wrong dnswl.org checks, but RBL checks are disabled then. Any ideas
how to handle that?
Ciao
Marcus
I would answer that you can't. Unless they forward you the source or
the original email as an attachment, many times that information is lost.
Regards,
KAM
