Backup MX

Mailkeep can act as a backup MX relay, forwarding all your mail on to your primary MX server. Unlike other backup MX systems, we test every single recipient against your system to prevent dictionary attacks while your system is online. Whether your system goes down for minutes or for weeks, we take care of your mail until you are back online. You can even inspect your mail queue via our website to check for urgent messages.

Using Mailkeep as a backup MX service couldn't be easier. You add our MX servers to your DNS record and tell us where you want your mail delivered. That's it.