> For the complete documentation index, see [llms.txt](https://docs.alemba.com/asm-hermes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.alemba.com/asm-hermes/setup-and-configure-asm/setting-up-your-system/setup-email/setting-up-incoming-and-outgoing-email/configuring-exchange-web-services-ews/ews-authorize-the-connection.md).

# EWS - Authorize the Connection

1. Enable the “Use OAuth 2.0 Authentication” checkbox in both the Incoming and Outgoing email server settings and click “Manage Token” 

{% hint style="info" %}
Both incoming and outgoing email servers can use the same token but each must be authorized separately to establish the respective connections 
{% endhint %}

2. Set the following values in the OAuth Token Details form:
   * Type: Microsoft Graph API 
   * Grant Type: authorization\_code 
   * Callback URL: Error! Hyperlink reference not valid. 
   * Authorization URL: [https://login.microsoftonline.com/{Azure Tenant ID}/oauth2/v2.0/authorize](https://login.microsoftonline.com/%7bAzure%20Tenant%20ID%7d/oauth2/v2.0/authorize)
   * Access Token URL: [https://login.microsoftonline.com/{Azure Tenant ID}/oauth2/v2.0/token](https://login.microsoftonline.com/%7bAzure%20Tenant%20ID%7d/oauth2/v2.0/token) 
   * **Client ID:** Value from the Azure App Registration 
   * **Client Secret:** The secret created for the App Registration 
3. The following scopes are required: 
   * <https://outlook.office365.com/**Mail.ReadWrite**&#x20>;
   * <https://outlook.office365.com/**Mail.Send**&#x20>;
   * <https://outlook.office365.com/**User.Read**&#x20>;
   * <https://outlook.office365.com/**EWS.AccessAsUser.All> offline\_access\*\*&#x20;

{% hint style="info" %}
**The following scopes must be used if you intend to use a shared mailbox**

* <https://outlook.office365.com/Mail.ReadWrite&#x20>;
* <https://outlook.office365.com/Mail.Send&#x20>;
* <https://outlook.office365.com/User.Read&#x20>;
* <https://outlook.office365.com/Mail.ReadWrite.Shared&#x20>;
* <https://outlook.office365.com/Mail.Send.Shared&#x20>;
* <https://outlook.office365.com/EWS.AccessAsUser.All> offline\_access&#x20;
  {% endhint %}

{% hint style="warning" %}
Corresponding permissions for these scopes ***may*** need to be added manually to the App Registration.
{% endhint %}

<figure><img src="/files/qczooJEq3AxBX9Q35yL9" alt=""><figcaption></figcaption></figure>

4. Click 'Authorize'
5. A pop up window will appear for you to enter the Exchange credentials and then authorize the connection

<figure><img src="/files/TfpxFeIyN5PHqi5Lg1ML" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/vZ28tlU42pJxazUaLYfS" alt=""><figcaption></figcaption></figure>

6. When the authorization process is complete, the popup will close.&#x20;
7. The OAuth Token Details dialog should close shortly thereafter.&#x20;

&#x20;


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