About
Office 365 is a Home Assistant integration that connects to Microsoft's cloud for calendars, mail, Teams and tasks. It provides calendar, notifier, sensor and to-do platforms, covering reading and creating calendar events and to-do tasks. Two sensor types read emails from an inbox, and a notify service sends email. It can also report Teams presence and the latest Teams chat message, though not for personal accounts, and it can set an out-of-office auto reply. This is a fork of an archived original project, and it is now deprecated: development has stopped except for changes that support migration to the separate MS365 integrations. It is configured through YAML, and it can show a repair notice about a deprecated configuration method.
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Supports
Uses the vendor's cloud Needs an internet connection and an account with the vendor.
From the Marketplace Installed through the Marketplace, formerly HACS.
Provides
- Sensors
- Calendars
Setting it up
Install it from the Marketplace and restart Home Assistant. It is then set up in configuration.yaml.
Troubleshooting
- Repair noticesNotices it can show in Settings, Repairs:Deprecated Secondary/Legacy configuration method
From the README
The Calendar, Mail Notification, Teams and To Do entities and services are now deprecated in the O365 integration. Development on O365 has now stopped unless a change is required to support migration to the MS365 integrations.
Details on how to migrate to the new MS365 integrations can be found here - Migration
Shows in Vulpo
Calendar card, Chart card, Apple Watch.Information
- Installs
- 109 sharing analytics
- GitHub stars
- 231
- Connection
- Uses the vendor's cloud
- Upkeep
- No update in 6 to 18 months
- Version
- v5.3.5,
- Category
- Productivity and information, Calendars and to-dos
- Kind
- Marketplace integration
- Brand
- Microsoft
- Needs
- Needs the Marketplace (HACS on 2026.10 and older)
- Domain
o365- Issues
- Report an issue




















