diff --git a/Lib/email/encoders.py b/Lib/email/encoders.py
index 2e77e61..20feb02 100644
--- a/Lib/email/encoders.py
+++ b/Lib/email/encoders.py
@@ -62,7 +62,7 @@
         # iso-2022-* is non-ASCII but still 7-bit
         charset = msg.get_charset()
         output_cset = charset and charset.output_charset
-        if output_cset and output_cset.lower().startswith('iso-2202-'):
+        if output_cset and output_cset.lower().startswith('iso-2022-'):
             msg['Content-Transfer-Encoding'] = '7bit'
         else:
             msg['Content-Transfer-Encoding'] = '8bit'
diff --git a/Lib/email/test/test_email.py b/Lib/email/test/test_email.py
index 1f257c7..2ebd39f 100644
--- a/Lib/email/test/test_email.py
+++ b/Lib/email/test/test_email.py
@@ -526,6 +526,13 @@
         msg = MIMEText('hello \xf8 world', _charset='iso-8859-1')
         eq(msg['content-transfer-encoding'], 'quoted-printable')
 
+    def test_encode7or8bit(self):
+        # Make sure a charset whose input character set is 8bit but
+        # whose output character set is 7bit gets a transfer-encoding
+        # of 7bit.
+        eq = self.assertEqual
+        msg = MIMEText('\xca\xb8', _charset='euc-jp')
+        eq(msg['content-transfer-encoding'], '7bit')
 
 
 # Test long header wrapping