Updating config example for new mail options

config.example.ini

@@ -38,9 +38,18 @@ redis-host=
 # Outgoing SMTP settings
 smtp-host=
 smtp-port=
+smtp-from=
+#
+# Default: starttls
+# Options: starttls, tls, insecure
+smtp-encryption=starttls
+#
+# Default: plain
+# Options: plain, none
+smtp-auth=plain
+# user / password are required if smtp-auth is plain
 smtp-user=
 smtp-password=
-smtp-from=
 #
 # Application exceptions are emailed to this address
 error-to=