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How to Configure User Authentication with Azure AD

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Important: If you are moving from LDAP to Azure AD, you must delete all Barracuda Email Security Service users you created with LDAP before synchronizing to Azure AD.

If you make setting changes, allow a few minutes for the changes to take effect.

See also: How to Restore LDAP or Azure AD Directory Services

Azure Active Directory

Configure recipient verification with Azure Active Directory (AD) to allow end-users to sign in to the Barracuda Email Security Service using their Azure AD credentials. Once logged in, users can view their quarantine messages.

Note: If when setting up your Office 365 Enterprise applications you set Users can consent to apps accessing company data on their behalf to No, users might not be able to log into the Barracuda Email Security Service without administrator consent. To resolve this issue, reauthorize Azure AD from the Domain Settings page in the web interface. See the Azure Active Directory Authentication section of How to Restore LDAP or Azure AD Directory Services for step-by-step instructions on Azure AD reauthorization.

Single Sign-On

You can configure Single Sign-On (SSO) for a domain so that authenticated users can access all or a subset of the restricted resources by authenticating just once using their Azure AD credentials. SSO is a mechanism where a single set of user credentials is used for authentication and authorization to access multiple applications across different web servers and platforms, without having to re-authenticate.

The SSO environment protects defined resources (websites and applications) by requiring the following steps before granting access:

  • Authentication: Authentication verifies the identity of a user using login credentials.
  • Authorization: Authorization applies permissions to determine if this user may access the requested resource.

Set Up Azure AD Authorization

Complete the steps in this section for each domain you want to synchronize with your Azure AD directory.

  1. Log into https://login.barracudanetworks.com/ using your account credentials, and click Email Security in the left pane.
  2. Click Domains, and click Edit in the Settings column for the desired domain.
  3. In the Domains > Domain Settings page, scroll to the Directory Services section, and select Azure AD, and click Save Changes at the top of the page.
  4. Scroll down to the Status section, and click Authorize.
  5. The Authorize Azure AD dialog box displays. Click Continue.
  6. When prompted, log into your Microsoft Office 365 account using your administrator credentials.
  7. In the Authorization page, click Accept to authorize the Barracuda Email Security Service to connect to your Azure AD directory.
  8. In the Barracuda Email Security Service Domain Settings page, the Status field displays as Active; the Authorized Account and Authorization Date display below the status:
  9. Click Sync Now to add your Azure AD users to the Barracuda Email Security Service.
  10. The synchronization progress displays; allow the process to complete.
  11. In the Synchronization Options section, select Synchronize Automatically. When selected, the Barracuda Email Security Service automatically synchronizes with your Azure AD directory every 15 minutes and adds/updates your users.

    If you select Manual, you must click Sync Now to synchronize the Barracuda Email Security Service with your Azure AD directory and add/update users.

  12. To use SSO, click Yes for Enable Single Sign On. Once enabled, users are prompted to log in to their Microsoft Office 365 account when accessing their messages in the Barracuda Email Security Service.
  13. Click Save at the top of the page to save your settings and return to the Domains page.

If you previously set up LDAP authentication with your Barracuda Email Security Service account, your settings are not lost when you select Azure AD for a selected domain. Note, however, turning off Azure AD disables SSO and new users are not synchronized but recipient verification continues to function. For more information, see How to Restore LDAP or Azure AD Directory Services.

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