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Email Gateway Defense

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Release Notes
Updated User Experience for Email Gateway Defense
How to Protect Against Gateway Bypass and Direct Send Risks
Update to Microsoft 365 Deployment for Email Gateway Defense
Getting to Know Email Gateway Defense
Getting Started
Moving from Barracuda Email Security Gateway to Email Gateway Defense
How the Service Works
Barracuda Networks Updates
Email Gateway Defense IP Ranges Used for Configuration
Partner Accounts
Sender Policy Framework for Outbound Mail
How to Set Up MX Records for Domain Verification
Security Warnings
Understanding User Accounts
Sender Authentication
Inbound Filtering Policy
Outbound Filtering Policy
Advanced Configuration
Managing Domains
Logs and Reports
User Guides
Tools and Add-Ins
API Overview
Troubleshooting, Error Messages, and Additional Tips
Online Service Terms

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Temporary Passcode Authentication Video

Published Feb 25

Temporary Passcode Authentication Video

Feb 25, 2026

Watch this video for information on the temporary passcode authentication and how to use it:

Temporary Passcode Authentication for Email Gateway Defense.mp4

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If you have questions, suggestions, or feedback on our documentation, contact the Campus Product Documentation team.
For general product inquiries or technical support, please contact the global Barracuda Support team.

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