will not normally be called directly by the user.
.PP
.B Post
-searches the \*(lqTo:\*(rq, \*(lqcc:\*(rq, \*(lqBcc:\*(rq,
+searches the \*(lqTo:\*(rq, \*(lqCc:\*(rq, \*(lqBcc:\*(rq,
\*(lqFcc:\*(rq, and \*(lqResent\-xxx:\*(rq header lines of the specified
message for destination addresses, checks these addresses for validity,
and formats them so as to conform to ARPAnet Internet Message Format