Issue #6683: For SMTP logins we now try all authentication methods advertised
by the server. Many servers are buggy and advertise authentication methods they
o not support in reality. This change makes smtplib.auth() work more often in
the real world, where we face misconfigured servers and servers that advertise
methods they don't support due to the madness that is SASL.
diff --git a/Misc/NEWS b/Misc/NEWS
index 4594a88..fe93e4e 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -40,6 +40,10 @@
 Library
 -------
 
+- Issue #6683: For SMTP logins we now try all authentication methods advertised
+  by the server. Many servers are buggy and advertise authentication methods they
+  o not support in reality.
+
 - Issue #8814: function annotations (the ``__annotations__`` attribute)
   are now included in the set of attributes copied by default by
   functools.wraps and functools.update_wrapper.  Patch by Terrence Cole.