Multisite Super admin and Network admin emails

The network admin email is changed from wp_sitemeta table. Use following query in phpmyadmin or any mysql client in order to update the email if you are unable to change from network admin settings.

UPDATE `wp_sitemeta` SET `meta_value` = '[email protected]' WHERE `meta_value` = '[email protected]';

Note: please use the table prefix accordingly used in db if it is not wp in your case.

enter image description here

error code: 523