-switch, then it will also associate
-an integrity check with each \*(lqleaf\*(rq content. This will add a
-Content-MD5 header field to the content, along with the md5 sum of the
-unencoded contents. This may be used by the receiver of the message to
-verify that the contents of the message were not changed in transport.
+switch, then it will also associate an integrity check with each
+\*(lqleaf\*(rq content. This will add a Content-MD5 header field to
+the content, along with the md5 sum of the unencoded contents, per RFC
+1864. This may be used by the receiver of the message to verify that
+the contents of the message were not changed in transport.