OutlookSearch your Outlook email in Glean
Connect Outlook to index your organization's email and fetch live email results. Access is read-only and scoped to each user's Outlook permissions. Calendar event indexing uses the separate Outlook Calendar connector.
For calendar events and supported meeting transcripts, use the separate Outlook Calendar connector. See Outlook Calendar.
If your calendar integration crawls events through Outlook Calendar or an existing Teams-based calendar connection, Glean uses organizer-owned events by default. Glean may not index meetings from organizers whose calendars it doesn't crawl. See Understand calendar crawl coverage.
Choose your path
Glean connects to Outlook with a read-only, certificate-based Microsoft Entra app. Which path is yours depends on your Glean deployment, not on when you personally connect Outlook.
New setup
You're on a new Glean deployment, created on or after August 14th, 2026. Register the single-tenant Azure app, grant the read-only Microsoft Graph permissions, upload the certificate, and Glean builds a permission-aware index of your email.
Previous setup
You're on an existing Glean deployment. Even if you're connecting Outlook for the first time, keep the setup you have to manage permissions, crawl restrictions, and indexing scope.
Not sure which is yours? Choose your Outlook setup.
Authentication
Outlook authenticates through a Microsoft Entra app. Choose the option that matches how you connect.
Certificate for indexing and real-time access
Set up certificate authentication that covers both native indexing and real-time access.
Certificate for data crawling and indexing
Set up certificate authentication for native indexing.
Certificate for real-time access
Set up certificate authentication for real-time access.
Client ID and secret for real-time access
Set up a client ID and secret for real-time access.