I have this issue. When users click "My Content & Settings" button and they click "Bulk management via email" button, they receive an email for bulk comment delete, unsubscription, and unfollowing. However, when they click "Delete all comments" link in the email, it is unsuccessful. It redirects the users to my blog page on the website (please see the attachment). There's no successful message or a landing page. And all the comments are still there on the front-end and in the WordPress dashboard. Any help would be wholeheartedly appreciated. Can anyone solve this issue?