If a \*(lqBcc:\*(rq field is encountered, its addresses will be used for
delivery, and the \*(lqBcc:\*(rq field will be removed from the message
sent to sighted recipients. The blind recipients will receive an entirely
-new message with a minimal set of headers. Included in the body of the
-message will be a copy of the message sent to the sighted recipients.
+new message with a minimal set of headers. The body of this new message
+will contain a copy of the message sent to the sighted recipients, either
+marked up with the indicator text "Blind-Carbon-Copy" or encapsulated
+as a MIME digest.
.PP
If a \*(lqDcc:\*(rq field is encountered and the
.B sendmail/pipe
mail transport method is not in use, its addresses will be used for
delivery, and the \*(lqDcc:\*(rq field will be removed from the message. The
-blind recipients will receive the same message sent to the sighted
+blind recipients will receive exactly the same message as the sighted
recipients. *WARNING* Recipients listed in the \*(lqDcc:\*(rq field receive no
explicit indication that they have received a \*(lqblind copy\*(rq.
This can cause blind recipients to
it takes extra effort in most mailers to reply to the included
message, and so would usually only be done deliberately, rather
than by accident.
+.PP
+If the
+.B sendmail/pipe
+mail transport method is used, then messages containing
+a \*(lqDcc:\*(rq field are rejected.
+
.PP
If
.B \-filter