+.B \-attach
+.I file
+switch attaches the specified file to the message. Use of
+.B \-attach
+enables
+.B \-profile
+because
+.B mhmail
+uses
+.B send
+to handle the attachment. It is usually best to enclose the argument
+in quotes to protect it from the shell. The
+.B \-attach
+switch may be given multiple times to add multiple attachments.
+.PP
+The