If you'd like to see the server statuses of all ZenDCA services and the supported exchange APIs, you can do so here: https://status.zendca.com/

It will display if the servers are currently operational and the historical uptime. 

If we're ever doing maintenance on the application or are experiencing downtime, we would email all of our users to keep them in the loop.

If you have any questions regarding the server uptime or anything related please email us at support@zendca.com