Best Email Security Products in 2025

We're on a mission to spread DMARC across the globe to make email and the internet safer for all.

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Learn about Proofpoint's email security solutions that protect organizations against threats such as email fraud, phishing, spam, bulk email, and viruses.

Warmup Inbox is a tool that automates the process of warming up your email inboxes, raising your sender reputation and inbox health automatically.

Try for free paid Free Trial $12.0 / Monthly (Per inbox, per month.)

Symantec Email Security.cloud provides always-on, inbound and outbound email security against malware, targeted attacks, and advanced threats

Cloud Native DMARC

Open Source freemium $35.99 / Monthly (2 domains, 100K emails, 3 month data history, 1 user)

Protect mail server against spam, viruses and malware with Proxmox Mail Gateway security for businesses, government, education and non-profit organizations.

Barracuda Essentials offers advanced Office 365 security features including email scanning, archiving, backup & recovery, and real-time phishing defense.

Barracuda's Email Security Gateway is a powerful antivirus filter specifically designed to identify and eliminate email-borne threats, stopping hazards before they reach the network.

Use this program to "Unspam" your mailbox(es).

Open Source

Cisco Email Security protects against ransomware, business email compromise, spoofing, and phishing.

Stop hackers to send emails from your domain

freemium $8.0 / Monthly

Fortinet Email security is designed to block ransomware, phishing, and other cyber threats seeking entry via incoming email and outgoing messages don’t improperly leak sensitive data.

A free tool to increase your email's deliverability

Area 1 identifies and prevents advanced socially engineered attacks before they impact your enterprise.