diff --git a/Lib/email/test/data/msg_37.txt b/Lib/email/test/data/msg_37.txt
new file mode 100644
index 00000000000..038d34a1a42
--- /dev/null
+++ b/Lib/email/test/data/msg_37.txt
@@ -0,0 +1,22 @@
+Content-Type: multipart/mixed; boundary=ABCDE
+
+--ABCDE
+Content-Type: text/x-one
+
+Blah
+
+--ABCDE
+--ABCDE
+Content-Type: text/x-two
+
+Blah
+
+--ABCDE
+--ABCDE
+--ABCDE
+--ABCDE
+Content-Type: text/x-two
+
+Blah
+
+--ABCDE--