Clients can now set custom expiry dates for API and SMTP keys, enhancing integration security. When generating a key, users can select an expiry date through a new Expiry field. The updated keys list includes an Expires on column displaying each key's expiry status. Keys with a fixed expiry will expire on the selected date, while those with no expiration will automatically expire after 90 days of inactivity. Users will receive email notifications three days prior and on the day of expiry.