[Mimedefang] Milter and local Received: line

[Philip Prindeville]

I may have missed the discussion of this, but looking back
through the archives I couldn't find a mention of it...

Why is it that when Sendmail passes a message on to the
Milter, that the local Received: line hasn't been appended
by that point?

(a) It's easy enough to strip it back off in that case;
(b) Technically, the message has been "received" at that
   point so it should be present;
(c) It would present a more consistent scenario for running
  SpamAssassin, et al, from either within Sendmail or
  invoked from procmail or whatever delivery agent is
  being used, since in both cases SA would count on seeing
  the local Received: line;
(d) And if the Milter wanted to attempt to re-insert the
  message into the delivery queue in an out-of-band manner,
  then it would already have the required Received: line
  instead of having to synthesize one.

Thoughts?

-Philip