---
title: "Microsoft Exchange 365 Mailer"
manual: "Microsoft Exchange 365 Mailer"
version: "3.2"
permalink: "https://docs.typo3.org/permalink/oliverkroener/ok-exchange365-mailer:start@3.2"
source: "Index.rst"
start: true
rendered: "2026-10-04T19:57:30+00:00"
---

# Microsoft Exchange 365 Mailer {#start}

-   *Extension key:* ok_exchange365_mailer
-   *Package name:* oliverkroener/ok-exchange365-mailer
-   *Version:* release
-   *Language:* en
-   *Author:* [Oliver Kroener](https://www.oliver-kroener.de) <[ok@oliver-kroener.de](mailto:ok@oliver-kroener.de)\>
-   *License:*

    This document is published under the
    [Open Publication License](https://www.opencontent.org/openpub/).

-   *Rendered:* today

> [!NOTE]
> -   **Purpose**: Enables TYPO3 to send emails through Microsoft Exchange 365 using Graph API instead of SMTP
> -   **Authentication**: Uses OAuth 2.0 for secure token-based authentication
> -   **API Integration**: Leverages Microsoft Graph API for direct email sending
> -   **Scalability**: Handles high email volumes without additional infrastructure

**Installation**

Explains how to install this extension in Composer-based and Classic
TYPO3 installations.

[Get started](https://docs.typo3.org/permalink/oliverkroener/ok-exchange365-mailer:installation@3.2)

**Microsoft Entra ID**

Learn how to configure Microsoft Entra ID (formerly Microsoft AD) for
this extension.

[Set up Azure](https://docs.typo3.org/permalink/oliverkroener/ok-exchange365-mailer:azure@3.2)

**Configuration**

Learn how to configure this extension for backend and frontend mail.

[Configure](https://docs.typo3.org/permalink/oliverkroener/ok-exchange365-mailer:configuration@3.2)

**FAQ**

Answers to questions that have been frequently asked.

[Read the FAQ](https://docs.typo3.org/permalink/oliverkroener/ok-exchange365-mailer:faq@3.2)

**How to get help**

Learn where to get help and how to report issues you found.

[Get help](https://docs.typo3.org/permalink/oliverkroener/ok-exchange365-mailer:help@3.2)