--- /dev/null
+From: aperson@dom.ain\r
+MIME-Version: 1.0\r
+Content-Type: multipart/digest; boundary=BOUNDARY\r
+\r
+--BOUNDARY\r
+\r
+Content-Type: text/plain; charset=us-ascii\r
+To: aa@bb.org\r
+From: cc@dd.org\r
+Subject: ee\r
+\r
+message 1\r
+\r
+--BOUNDARY\r
+\r
+Content-Type: text/plain; charset=us-ascii\r
+To: aa@bb.org\r
+From: cc@dd.org\r
+Subject: ee\r
+\r
+message 2\r
+\r
+--BOUNDARY--\r