In the event that your email servers (or your host) cannot be reached for any reason, OnlyMyEmail will continue to accept and filter your email, and will hold your email for delivery until your systems can be reached. There is no action required on your part to enable this feature; the spooling and subsequent delivery will occur automatically.
Senders will not receive bounce notifications, so they will never know that your servers were unavailable. Additionally, you may provide us with the names & addresses of any other servers where you would like your messages delivered when your primary systems cannot accept mail.