To: testuser1@localhost
Subject: TestMail
Content-Type: multipart/mixed;
 boundary="------------040409030909020903090803"

This is a multi-part message in MIME format.
--------------040409030909020903090803
Content-Type: text/plain; charset=ISO-2022-JP
Content-Transfer-Encoding: 7bit

testmail-body

--------------040409030909020903090803
Content-Type: text/plain;
 name="File/name.txt"
Content-Transfer-Encoding: base64
Content-Disposition: inline;
 filename="File/name.txt"

dGVzdDENCnRlc3QxDQp0ZXN0MQ0KdGVzdA0KdGVzDQp0ZQ0KdA==
--------------040409030909020903090803
Content-Type: text/plain;
 name="File/name.txt"
Content-Transfer-Encoding: base64
Content-Disposition: inline;
 filename="File/name.txt"

dGVzdDENCnRlc3QxDQp0ZXN0MQ0KdGVzdA0KdGVzDQp0ZQ0KdA==
--------------040409030909020903090803--
.
