#24211: Add missing docs for SMTPUTF8 policy instance.
diff --git a/Doc/library/email.policy.rst b/Doc/library/email.policy.rst
index 6e13186..045b119 100644
--- a/Doc/library/email.policy.rst
+++ b/Doc/library/email.policy.rst
@@ -534,6 +534,14 @@
Like ``default``, but with ``linesep`` set to ``\r\n``, which is RFC
compliant.
+.. data:: SMTPUTF8
+
+ The same as ``SMTP`` except that :attr:`~EmailPolicy.utf8` is ``True``.
+ Useful for serializing messages to a message store without using encoded
+ words in the headers. Should only be used for SMTP trasmission if the
+ sender or recipient addresses have non-ASCII characters (the
+ :meth:`smtplib.SMTP.send_message` method handles this automatically).
+
.. data:: HTTP
Suitable for serializing headers with for use in HTTP traffic. Like