Mailbox Continuity

Deliver always-on email without the expense and headache

Downtime. It underscores how important email is. Employees hate it and productivity screeches to a halt.

With Mimecast Mailbox Continuity downtime is a thing of the past. In the event of a sudden email outage or planned downtime, Mimecast provides uninterrupted access to live and historic email and attachments from the Mimecast Cloud using everyday tools like Outlook for Windows, the web and mobile applications. Employees get guaranteed access to email —from anywhere, on any device. And administrators can do it all without expensive hardware and software.

Mimecast Mailbox Continuity provides:

  • Management of downtime of on-premises, cloud and hybrid primary email systems for better productivity and peace of mind
  • Uninterrupted access to all live and historic email and calendar information from everyday applications and devices to keep business moving
  • 100% service availability SLA delivered from the highly secure Mimecast cloud
  • Learn more about the C1, M2 and M2A service bundles that include Mailbox Continuity

More on Mimecast Mailbox Continuity:

With over 18,000 customers, Mimecast knows the challenge of keeping email flowing despite planned and unplanned outages.

Mimecast ensures continuity when primary email systems are offline. Customer employees aren’t impacted and frequently are unaware the system has been down at all. Mimecast has data centers located around the globe, has invested in redundant systems and replication, and has the scale to process hundreds of millions of emails each day with over 130 billion messages under management.


  • Instant failover and failback reduces RPO & RTO for email to near zero.
  • Immediate admin initiated switch-over when an event occurs, keeps end users happy and productive.
  • Automatic synchronization of mailboxes after an event lowers confusion without straining IT.
  • Access to email through Outlook for Windows, a native app for Mac users and a full suite of mobile apps means employees can carry on receiving and sending email as if the primary email system was performing normally.
  • Management of continuity events directly from the Mimecast Administration Console gives complete control of failover events and outages.
  • SMS continuity alerts allow fast and reliable communication between IT and end users during email interruptions. 
  • No hardware or software to purchase, reduces costs and lowers IT overhead.


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