-.B \-push
-is specified,
-.B send
-will detach itself from the user's
-terminal and perform its actions in the background. If
-.BR push 'd
-and the draft can't be sent, then an error message will be sent (using
-the mailproc) back to the user. If
-.B \-forward
-is given, then a copy
-of the draft will be attached to this failure notice. Using
-.B \-push
-differs from putting
-.B send
-in the background because the output is
-trapped and analyzed by
-.BR nmh .
-.PP
-If