Microsoft 365 for Home Assistant (Marketplace integration)

Installs: 178 sharing analytics
GitHub stars: 20
Connection: Uses the vendor's cloud
Upkeep: Updated in the last 6 months
Version: v1.13.2, October 26, 2026
Category: Productivity and information, Calendars and to-dos
Kind: Marketplace integration
Brand: Microsoft
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: ms365_mail
Source: github.com/RogerSelwyn/MS365-Mail
Issues: Report an issue

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation.

About

Microsoft 365 - Mail is an integration that reads and sends Microsoft 365 email from Home Assistant. It adds sensors for mail in a chosen folder and a notifier for sending messages, and it relies on Microsoft's cloud. The sensors can be filtered by sender, attachments, importance, unread state, and text in the subject or body. Options also cover showing attachment names, saving attachments, and outputting the body as HTML. Actions can schedule or disable an automatic reply, and a shared mailbox can be used. Setup is done in the UI with a client ID and client secret.

Automatic summary of the README and code of RogerSelwyn/MS365-Mail. Something wrong, or are you the maintainer and want your own text here? Get in touch

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.
Actively maintained Its author released or pushed a change in the last six months.

Provides

Sensors

Setting it up

Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.

Connect

Uniquely identifying name for the entities
Client ID
Client Secret
Use alternate (more complex) authentication
Enable update services
Email address/ID of shared mailboxDo not put your own email address in this box
Enable management of autoreply
API CountryOnly use if you know you need it since your credentials will be sent to the selected api/country.

Request default

Returned URL

After setup

Mail folder to monitor
Max number of items
Unread items
Only retrieve emails from this email address
Has attachments
Importance Level
Subject contains
Subject is
Body contains
Show attachment names
Save attachments
Output HTML body
Show body on entity

Texts from the code of RogerSelwyn/MS365-Mail.

Actions

Auto reply enableSchedules auto replyFields: External reply, Internal Reply, Start date & time, End date & time, External Audience
Auto reply disableDisables auto reply
Mail SendSends a mailFields: Subject, Message, To, From, Importance, Message is HTML, Photos, Attachments, ZIP attachments, ZIP file name

Troubleshooting

DiagnosticsDownloads a diagnostics file to attach to a bug report.

From the README

This project would not be possible without the wonderful python-o365 project.
I work on this integration because I like things to work well for myself and others. Please don't feel you are obligated to donate, but of course it is appreciated.

From the README of RogerSelwyn/MS365-Mail, MIT License. Shortened.