This action always succeeds.
.TP 4
.IR file ", " mbox ", or " >
-Append the message to the file named by
+Append the message to the mbox file named by
.IR string .
-The message is
-appended to the file in mbox (uucp) format. This is the format used by most
-other mail clients (such as mailx, elm). If the message can be appended to
-the file, then this action succeeds.
+This is handled by piping the message to the
+.B nmh
+program
+.BR rcvpack .
+If
+.B rcvpack
+returned successful, then this action succeeds.
.TP 4
.IR pipe " or " |
Pipe the message as the standard input to the command named by
.B nmh
folder named by
.IR string .
-Currently this is handled by piping the message to the
+This is handled by piping the message to the
.B nmh
program
-.BR rcvstore ,
-although this may change in the future.
+.BR rcvstore .
+If
+.B rcvstore
+returned successful, then this action succeeds.
.RE
.PP
.BR result :