The Best Email Security Software In 2026

Best Email Security Solutions

We have reviewed seven popular email protection software solutions and summarized our insights in a comparison table to help you discover which is best for you.

1. Check Point Harmony Email & Collaboration (Avanan)

Check Point Harmony Email & Collaboration (formerly Avanan Email Security) offers protection against viruses, phishing, malware, data loss, and account compromises. It uses advanced AI technology to block malicious attacks before they can reach your inbox.

Check Point’s Harmony also analyzes each user’s email history, which allows it to quickly detect mail fraud and user impersonations, which can be a serious issue if undetected. The tool offers protection for nearly any mail service provider, plus other collaborative apps like Microsoft 365, G Suite, Slack, and more.

Check Point does not publicly disclose pricing for Harmony Email & Collaboration. Contact the vendor directly or request a quote through an authorized reseller.

However, enterprise customers with more than 500 mail users will need to obtain a custom quote directly from Check Point.

While Check Point is one of the more sophisticated email security solutions out there, it is also one of the most complicated to operate. For this reason, you may need a very tech-savvy person on your team to help with setup and regular use.

2. Barracuda

Barracuda Email Protection is a cloud-based security software that protects users against all 13 types of mail threats such as malware, phishing, denial-of-service attacks, and spam. It utilizes machine learning to achieve the highest accuracy in threat detection. Barracuda also offers encryption and mail attachment protection, meaning you don't have to worry about an email data breach.

Barracuda offers three different plan options: advanced, premium, and premium plus. Unfortunately, the company does not publicly provide their pricing information, which makes it hard to compare apples to apples with other top email security software providers.

3. N-able Mail Assure

N-able Mail Assure offers protection against viruses, spam, malware, ransomware, phishing, and nearly any other type of email threat. The system offers email protection tools both for incoming and outgoing mail, and features like the system’s authentication techniques help keep everyone’s inbox safe. N-able Mail Assure also offers integration with Office365 and unlimited mail archiving.

Although N-able offers a free email security software trial without requiring any payment methods, they don't disclose their pricing without a direct quote from their sales team. This can be a turnoff for some customers, but it really just depends on what you’re looking for in terms of mail security.

4. Proofpoint

Proofpoint Email Protection offers a robust amount of mail security, including antivirus and antispam protection. The company includes data loss prevention and outbound filtering as well, not to mention other email management features. Furthermore, Proofpoint offers tools like email encryption, imposter mail protection, and report features.

Proofpoint Essentials starts at $3.03/month per user for the Business plan and goes up to $5.86/month per user for the Professional tier. However, the company also offers a free trial of their product.

The newest version of the software offers mail attachment protection through its Proofpoint Essentials Attachment Defense technology, placing it on equal footing with its competitors.

5. SpamTitan

SpamTitan is an advanced email security software that's specifically designed for businesses and other large organizations. It offers protection against malware, phishing, denial-of-service attacks, spam, and more. Additionally, SpamTitan includes custom filtering tools, data leak prevention, and email encryption.

To access SpamTitan pricing, users must fill out a form on their pricing page. Instant quotes are available for companies with up to 100 users. For those with more users, the team will offer a personalized quote. Although prices are above the market average, the exceptional features justify the premium, particularly for Office365 users, thanks to seamless integration.

Users may find it advantageous that tech support is included with TitanHQ’s cybersecurity products and can be accessed via phone or by submitting a ticket through their support portal.

6. IRONSCALES

IRONSCALES is an advanced integrated cloud email security platform that uses adaptive AI and ML technology, enriched with insights from over 20,000 threat hunters, to protect its users against sophisticated threats. The key feature of this service is its ability to integrate seamlessly with your email environment using a powerful API in order to provide robust, automated protection that evolves in real time.

Unlike many less comprehensive email protection services, IRONSCALES offers auto-remediation with its Security Operations Center (SOC). This capability reduces the workload on IT teams and minimizes the potential impact of attacks.

Pricing for IRONSCALES can meet the needs of both small and large organizations. The service offers a free Starter plan, which includes features like phishing simulation testing and a mobile email security app for the admins. For more comprehensive protection, the IRONSCALES Protect plan provides a suite of advanced features, and discounts are available for organizations with more than 500 mailboxes.

7. Cisco Secure Email Threat Defense

Cisco Secure Email Threat Defense is a cloud-based security solution that protects users against a wide range of threats, including phishing, ransomware, and business email compromise (BEC). According to ScienceSoft, BEC scams can lead to multimillion-dollar financial losses and serious reputational damage, making them one of the most dangerous email threats.

It uses advanced threat detection techniques, including machine learning, artificial intelligence, and threat intelligence from Cisco Talos, to identify malicious emails, and it provides a variety of remediation options directly in the platform or through Cisco XDR.

Cisco provides a free trial for its email security solution, allowing potential users to assess its features. Given that paid plans are quite costly and customized for each company, it's wise to use the trial. While Cisco Secure Email Threat Defense may be too much for small businesses, it could be a valuable investment for large enterprises dealing with complex and numerous email threats.

How To Choose The Right Email Security Service

Even after comparing dozens of email security services, you may still feel like you don't know how to choose the right mail security software for yourself as an individual or for your company. While mail security is anything but a one-size-fits-all solution, there are some factors that can help anyone decide which solution to choose.

When selecting security services for your mailbox, you want to look for a solution that:

• Is easy to set up and use
• Provides adequate protection
• Offers strong filtering accuracy
• Includes phishing protection
• Encrypts data
• Is customizable to meet your needs
• Connects well with your other business tools

Read more:

• The Most Secure Email Providers. Updated in 2026
• Safe Unsubscribe: Risks, Best Practices, and Solutions
• Have I Been Pwned? What It Means And How To Protect Your Email