Configuration 

This section covers all aspects of configuring the Microsoft Exchange 365 Mailer extension for TYPO3.

After completing the Azure Configuration, you need to configure the TYPO3 extension with the values obtained from Microsoft Entra ID.

Quick Configuration Overview 

The extension requires the following key configuration variables:

  1. Mail Transport: Set to use Exchange365Transport
  2. Tenant ID: Your Microsoft Entra ID tenant identifier
  3. Client ID: Your Azure application identifier
  4. Client Secret: Your Azure application secret
  5. From Email: The sender email address
  6. Graph Sender User ID (optional): Graph mailbox for Send As / Send On Behalf
  7. Save to Sent Items (optional): Whether to save emails to sent folder

For detailed step-by-step instructions, see:

Configuration Methods 

The transport is selected only in $GLOBALS['TYPO3_CONF_VARS']['MAIL']['transport']. The credentials and sender can come from:

Essential Configuration (baseline for every context)
  • Environment variables, mapped onto TYPO3_CONF_VARS by your project
  • AdditionalConfiguration.php reading the environment
Frontend Configuration (optional per-site overrides)
  • TypoScript, ideally with := getEnv(...). Non-empty TypoScript values override TYPO3_CONF_VARS per setting; empty values fall back.

If TYPO3_CONF_VARS is configured, frontend forms (Powermail, Form Framework) work without any TypoScript.