Email Security & Messaging

Prevent Spam, Phishing and Ensure Private Communications

Free Email Certificate

Email certificates allow you to encrypt and digitally sign messages before sending.

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Comodo Antispam Gateway

Strengthen your pre-perimeter defenses using our cloud-based email filtering solution removing spam, malicious attachments & phishing emails.

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Personal Authentication Certificate

Add security to emails and documents and authenticate yourself to online services.

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Recommended Security Products

Comodo Internet Security Pro 10 NEW

CIS Pro is an all-in-one security suite includes Firewall, Antivirus and more.
PC Magazine editors' choice!

Free download

Comodo Antivirus

Detects and destroys malware, viruses and other online threats.

Free download

Comodo Firewall

Our most downloaded free product. Keeps your PC from all online attacks.
CNET 5-Star rated!

Free download


Remote live supports that diagnose and fix all your PC issues.
Always available to fix your PC!

Free download

Comodo Endpoint Protection

Comodo Advanced Endpoint Security protects against viruses and malware by focusing on prevention and not simply detection.

Free download