I'd like to ask if SA scoring would be affected by potential changes in
the envelope fields (which presumably depends on when in the mail flow
SA is used, Postfix in this case):
* content_filter when receive_override_options=no_address_mappings (sent
to filter via SMTP)
* content_filter when address mappings have occurred (sent to filter via
SMTP)
* in the delivery agent (given to delivery agent via LMTP)
Are there impacts to scoring to consider? Are they small or large? Can
adding a X-Original-To header help the delivery agent show SA how the
message was originally received?
