On 10/8/2009 10:17 AM, Duncan B. wrote:
Are you able to point towards some docs as to how I can achieve what I
need, to search for existence of a particular header
Thanks
Duncan
Requiring some specific coded header in postfix is not
possible without some external content filter or milter. This
relies on a legit bounce containing all original headers,
which is often true but not guaranteed.
Some basic yet quite effective protection is detailed here:
http://www.postfix.org/BACKSCATTER_README.html
This relies on a bogus bounce message containing bogus
headers, which is often true but not guaranteed.
Google for batv and/or batv-milter for a more intrusive but
more reliable system.
-- Noel Jones