Return-path header control

[Henrique de Moraes Holschuh]

Well, this Return-path issues got me thinking a bit about the issue...

I could write code to add a configuration option to Cyrus so that it
has two methods to deal with return-path:

1. Override (should be the default one): trash any return-path headers
   in the message, and add ours (from -r or MAIL FROM:)
2. Add:  Add our return-path header _if_ there ins't already one in there.
   Messages with more than one return-path header are in error.

Also, should messages with multiple return-paths be flagged as illegal? The
RFCs seem to imply that only _one_ return-path header is allowed.  Doing
this could cause severe headaches for people with spools with broken emails
with more than one (which I think is a fairly common problem).

Thoughts about the issue?  Ken, Rob?

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh