Wietse Venema:
> Patch below.
Carlos Velasco:
> Tested patch against 3.8.3, now it works as expected. Thank you.
> No duplicated "Received-SPF" and *removing "Received" in position
> 1 is now not the own generated, is really the first one Received
> seen in the milter.*
Your second comment (text between "*" and "*") led me to a better
problem analysis.
- The real problem was not with the Postfix order of headers.
- The real problem also was not with the Postfix code that exposes
message headers with remote smfi_header() calls in the Milter;
that code was already fixed to handle prepended headers on 20141018.
- The real problem was that the Postfix code that handles header
update/delete requests from a Milter was not fixed on 20141018.
Thus, the Postfix code that handles header update/delete requests
was still naively skipping the first header, making calls to delete
the prepended Received-SPF: header ineffective, and mis-directing
calls to delete the first Milter-visible Received: header, instead
deleting the invisible Postfix-generated Received: header (wtf).
To maintain protocol compatibility, the Postfix code that handles
header update/delete requests will need to skip the Postfix-generated
Received: header, instead of the first message header.
Once that mess is handled with, we can consider adding a flag to
expose Postfix-generated Received: headers to Milters.
Wietse
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