LDAP Authentication
If you previously set up LDAP authentication with Email Gateway Defense, your settings are not lost when you select Azure AD (now Microsoft Entra ID) for a selected domain. Note, however, turning off Microsoft Entra ID disables Single Sign On (SSO) and new users are not synchronized; recipient verification continues to function.
To restore LDAP settings:
Log into https://login.barracudanetworks.com/ using your account credentials, and click Email Gateway Defense in the left pane.
Click Domains, and click Edit in the Settings column for the affected domain.
In the Domains > Domain Settings page, click LDAP in the Directory Services section.
In the Turn Off Azure AD dialog box, click Turn Off to disable Microsoft Entra ID.
Allow the LDAP Configuration Settings test to complete.
The LDAP test results display. Click OK to close the dialog box.
Your LDAP Configuration is restored.
Microsoft Entra ID (formerly Azure Active Directory) Authentication
To restore Microsoft Entra ID authentication:
Log into https://login.barracudanetworks.com/ using your account credentials, and click Email Gateway Defense in the left pane.
Click Domains, and click Edit in the Settings column for the affected domain.
In the Domains > Domain Settings page, click Azure AD in the Directory Services section.
In the Disconnect LDAP dialog box, click Disconnect LDAP Directory to disable LDAP.
Click Save Changes at the top of the page.
In the Status section, click Authorize.
The Authorize Azure AD dialog box displays. Click Continue.
When prompted, log into your Microsoft 365 account using your administrator credentials.
In the Authorization page, click Accept to reauthorize Email Gateway Defense to connect to your Microsoft Entra ID directory.
The synchronization progress displays; allow the process to complete.
The Synchronization Options section displays based on your original setup. When Automatic is selected, Email Gateway Defense automatically synchronizes with your Microsoft Entra ID (formerly Azure AD) at regular intervals throughout the day and adds/updates your users.