diff --git a/Dovecot/conf.d/10-auth.conf b/Dovecot/conf.d/10-auth.conf
index 77c65ef..7158887 100644
--- a/Dovecot/conf.d/10-auth.conf
+++ b/Dovecot/conf.d/10-auth.conf
@@ -97,7 +97,7 @@ auth_username_format = %n
 #   plain login digest-md5 cram-md5 ntlm rpa apop anonymous gssapi otp skey
 #   gss-spnego
 # NOTE: See also disable_plaintext_auth setting.
-auth_mechanisms = plain login auth
+auth_mechanisms = plain login
 
 ##
 ## Password and user databases