-The
-.B \-alias
-.I aliasfile
-switch can be used to specify a file that spost
-should take aliases from. More than one file can be specified, each
-being preceded with
-.BR \-alias .
-In any event, the alias file, set with the `Aliasfile' profile entry, is
-read first.
+If a `Dcc' field is encountered, the field will be removed
+before sending the message. The Dcc recipient will receive the
+message as well, but without being mentioned in the recipient
+headers.
+.PP
+In contrast to Bcc, the Dcc recipient receives the
+same original message as all the sighted reciepients, whereas
+the Bcc recipient receives a special, newly constructed message,
+which contains the original message as an attachment.
+.PP
+Bcc is probably a good choice for a message with both sighted
+and invisible reciepients (e.g. inform someone privately about
+the message being sent). Dcc is probably a good choice for
+a message to a group of only invisible recipients (e.g. invite
+to a party).
+.PP
+The `Aliasfile' profile entry
+can be used to specify one or more files that spost
+should take aliases from.
+.PP
+Aliasing is done on any address field. Those are:
+`From:', `To:', `Cc:', `Bcc:' and `Dcc',
+or the `Resent\-xxx:' versions of these fields.