diff --git a/Lib/email/test/data/msg_31.txt b/Lib/email/test/data/msg_31.txt
new file mode 100644
index 00000000000..1e58e56cf52
--- /dev/null
+++ b/Lib/email/test/data/msg_31.txt
@@ -0,0 +1,15 @@
+From: aperson@dom.ain
+MIME-Version: 1.0
+Content-Type: multipart/mixed; boundary=BOUNDARY_
+
+--BOUNDARY
+Content-Type: text/plain
+
+message 1
+
+--BOUNDARY
+Content-Type: text/plain
+
+message 2
+
+--BOUNDARY--