Barracuda Email Security defends your inbox against spam, malware, phishing, ransomware, business email compromise (BEC), and account takeover. It also addresses zero-day threats, impersonation attacks, and domain fraud using a combination of AI-driven detection, threat intelligence, and policy enforcement.

Advanced Email Protection covers the core layer: spam, malware, phishing, and email continuity. Premium adds AI-powered threat detection, impersonation protection, account takeover defense, and DMARC enforcement. Premium Plus layers on automated incident response, security awareness training, forensics, and threat hunting for organizations that need a full-stack email security program.

Yes. Barracuda Email Security integrates natively with Microsoft 365 and Google Workspace via API and MX-routing. The API integration gives Premium and Premium Plus plans visibility into internal mail flow, not just inbound messages, which is critical for catching account takeover and internal phishing attempts.

Account takeover protection detects when a legitimate employee account has been compromised and is being used to send phishing or malware from inside your organization. Because the mail originates from a trusted account, traditional filters often miss it. Barracuda uses behavioral AI to flag unusual sending patterns and alert your team before the attack spreads.

Premium Plus includes access to Barracuda PhishLine, which delivers simulated phishing campaigns, customizable training content, and reporting dashboards. You can run automated training workflows so employees who click a simulated phish are immediately enrolled in a remediation course.

All three plans are cloud-based SaaS subscriptions. Deployment is a configuration change, not a hardware install. For Microsoft 365 and Google Workspace you connect via API in minutes. MX-routing is also available for gateway-mode filtering. Your email continues to flow throughout setup.

Yes. Barracuda Email Security licenses are per-mailbox and can be scaled up at any renewal cycle. Upgrading from Advanced to Premium or Premium Plus is a plan change, not a new deployment, so your existing configuration carries over.

Premium and Premium Plus include DMARC, DKIM, and SPF enforcement plus reporting tools that show you who is sending mail on behalf of your domain. This protects your customers and partners from receiving spoofed emails that appear to come from you.