Cirrus Insight and the EWS retirement
Microsoft Graph migration status from Cirrus Insight's own notices. Last checked 2026-10-25.
Cirrus Insight
- Status
- Moved to Microsoft Graph
- Vendor notice
- https://www.cirrusinsight.com/knowledgebase/microsoft-exchange-connections-graph-api
“Cirrus Insight reads and writes mailbox data through Microsoft Graph”
Microsoft Exchange Connections - Graph API, read 2026-10-25.
What to do. Cirrus Insight connects Microsoft 365 through Microsoft Graph with an Entra app registration. Admins still on an Exchange (EWS) service account should create the app registration and switch the service account to Microsoft 365.
One email from ewsappid.com each time a status on this page changes, nothing else, and none after 1 April 2027. Every alert has an unsubscribe link; one press deletes your address, or write to support@ewsappid.com at any time. Sender details are on the contact page; see the privacy policy.
Application IDs
This site lists no fixed application ID for Cirrus Insight. Look up an ID from your EWS usage report on the home page, or find the name behind it in Entra, under Enterprise applications.
Every app in your tenant
The tenant plan reads your EWS usage report in your browser and matches each app against these statuses and your current allow list. All vendor statuses.