+.IP -DMAILER=\fIstring\fP
+This is the name of the program that \*E uses to send mail to a user whose
+text has just been preserved.
+(See the manual page for the \fIelvprsv\fR program.)
+If your system doesn't use electronic mail, then this option is irrelevent.
+For UNIX and OS-9 systems, though, the value should be a quoted string.
+The default value is "mail", but
+SysV users may prefer to use "mailx", and BSD users may prefer "Mail".