SET autocommit=0;
USE billing;

DELETE FROM email_templates WHERE name = 'fax_receive_ok_default_email';
DELETE FROM email_templates WHERE name = 'fax_receive_error_default_email';
DELETE FROM email_templates WHERE name = 'fax_send_copy_default_email';
DELETE FROM email_templates WHERE name = 'fax_notify_ok_default_email';
DELETE FROM email_templates WHERE name = 'fax_notify_error_default_email';
DELETE FROM email_templates WHERE name = 'fax_notify_secret_update_default_email';

ALTER TABLE email_templates DROP attachment_name;

COMMIT;