nrcpts= syslog equate shows
the number of recipients after all aliasing has
been performed. If the original message was addressed to
root, and if root was
aliased like this:
root: bob, hans
and if bob's
~/.forward file contained this:
the nrcpts= syslog equate
would show three recipients.
Note that nrcpts= is included only with the sender
record and that record is emitted when the message is first
processed. Any later changes in aliasing that might happen while the
message is queued are not reported. Aliasing on remote machines (as
would be the case with exploder mailing lists) is also not reported
for obvious reasons.