i see that the MAIL FROM info for the container message can be made
different from the corresponding information in the bsmtp object w/o
having adverse affects on delivery.
for RCPT TO though, the best i've come up w/ so far is to specify an
address that forwards received messages to other forwarders or to the
ultimate recipient. is it possible to do better than this?
The RCPT TO needs to be the address of the BSMTP processor. You can have a
single processor for a large number of individual users, and if you do
this, you cannot tell from the outer envelope what user is being sent
to. Not knowing the specific user makes traffic analysis a heck of a lot