On 22/03/2019 23:39, Jeremy Harris via Exim-users wrote:
On 21/03/2019 18:15, Tim Watts via Exim-users wrote:
Do you think setting a magic X- header and picking that up in the
dnslookup routers might be sane?
Perfectly possibly, with appropriate care.
Don't forget to clean any such headers in ACL
to avoid contamination from outside.
Has the disadvantage that the header is left on the message.
Indeed - one must always be mindful of tainted input from outside.
Another way is to use address_data.
"The address_data facility is also useful as a means of passing
information from one router to another, and from a router to a transport."
https://www.exim.org/exim-html-current/doc/html/spec_html/ch-generic_options_for_routers.html
OK - that's cool - thanks for the tip.
Thi sis all moderately complex so I will have to construct a test setup
rather than mess around in production.
Thank you very much for that :)
--
Tim Watts
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