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As of March 1, 2022, the legacy Barracuda Essentials Security, Compliance, and Complete editions are no longer available for purchase. Only existing customers can renew or add users to these plans.

Following October 30, 2022, the documentation and trainings will no longer be updated and will contain outdated information.

For more information on the latest Email Protection plans, see Barracuda Email Protection.

To update your bookmarks, see the following for the latest documentation and trainings:

Note that MSP customers should continue to follow Barracuda Essentials for MSPs.

Security Warnings

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When the Barracuda Email Security Service determines an embedded web link is fraudulent or inappropriate, a security warning displays onscreen with the available actions.

Blocked Categories

Blocked categories include:

  • Hacking
  • Phishing Attacks
  • Spam
  • Typosqatting
  • Spyware
  • Malicious Sites

When a link containing a blocked category is detected, a Security Warning displays. For example:


If a typosquatted link is detected in a user's email, the Security Warning page displays the fraudulent or inappropriate link (which cannot be clicked) and supplies a verified link to the valid domain.

Learn to Detect and Prevent Future Attacks

There are short, end-user training exercises integrated into the Security Warnings to help users understand what they did wrong and teach them how to identify threats in the future.

Spam Content Category Examples

Typosquatted Content Category Examples