Top 25 Email Encryption Software Of 2026
Best Email Encryption Software Shortlist
Here’s my shortlist of the best email encryption software:
In today's digital world, keeping your emails secure is more important than ever. You face challenges with data protection, compliance, and maintaining privacy. Email encryption software is your ally, safeguarding your communication from prying eyes.
I've independently tested and reviewed various solutions in the SaaS industry. My goal is to give you an unbiased look at the top email encryption tools available. I'll share insights on features, user experience, and how these tools can fit your needs.
As you read, you'll find practical advice to help your team choose the right encryption software. Let's explore the options and find the best fit for your security needs.
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Best Email Encryption Software Summary
This comparison chart summarizes pricing details for my top email encryption software selections to help you find the best one for your budget and business needs.
| Tool | Best For | Trial Info | Price | ||
|---|---|---|---|---|---|
| 1 | Best for converging email and chat into one | Free plan available | From $4/user/month (billed annually) | Website | |
| 2 | Best for legal proof of encrypted email delivery | Not available | Pricing upon request. | Website | |
| 3 | Best for large enterprise email security | Free demo available | From $3/user/month (min 50 seats) | Website | |
| 4 | Best for Swiss-based secure emailing | 30-day free trial | From $7.99/user/month (billed annually) | Website | |
| 5 | Best for advanced threat protection | Free demo available | From $15/user/month (billed annually) | Website | |
| 6 | Best for layered defense against email-borne threats | 14-day free trial | From $0.98/user/month (min 10 seats) | Website | |
| 7 | Best for end-to-end encrypted mailboxes | Not available | From $1.34/user/month (billed annually) | Website | |
| 8 | Best for data protection across networks | Not available | From $5/user/month, (billed annually). | Website | |
| 9 | Best for PGP encryption in Gmail | Not available | From $5/user/month (billed annually) | Website | |
| 10 | Best for healthcare industry | Not available | Pricing upon request. | Website |
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Best Email Encryption Software Reviews
Below are my detailed summaries of the best email encryption software that made it onto my shortlist. My reviews offer a detailed look at the key features, pros & cons, integrations, and ideal use cases of each tool to help you find the best one for you.
Spike presents an innovative approach to communication, melding the formal structure of email with the immediacy of chat. Its unique layout is designed for those who crave the fluidity of chat but can't detach from the necessity of emails.
Why I Picked Spike: Having evaluated a plethora of email tools, Spike caught my attention due to its distinct offering. I chose it because, in my assessment, it fills a gap that many didn't even recognize existed. The convergence of chat and email in Spike addresses the constant juggle between two platforms, making it the solution I determined as best for a consolidated communication experience.
Standout Features & Integrations:
Features include Conversational Email, which reshapes how users perceive and interact with emails, translating them into a chat-like format. The Priority Inbox is another feather in its cap, organizing emails based on relevance to cut through the noise.
Integrations include Google Drive, Dropbox, OneDrive, Slack, Zoom, Asana, Trello, Microsoft Teams, Evernote, and Todoist.
Pros and cons
Pros:
- A unique blend of chat and email on one platform
- Priority Inbox effectively categorizes incoming mail
- Embedded tools like calendars and tasks for comprehensive management
Cons:
- Might feel unconventional to some traditional email users
- The absence of a dedicated chat space may not appeal to everyone
RMail is designed to offer secure and encrypted email services with an added advantage: legal proof of delivery. This makes it a top choice for professionals requiring evidence that their encrypted emails were not only sent but also delivered and opened.
Why I Picked RMail: In my process of selecting email platforms for specific use cases, RMail stood out for its unique offering. It wasn’t just the encryption that was impressive but the provision of legal proof of delivery. I deem RMail to be the prime option for those in professions where such evidence is crucial.
Standout features & integrations:
Features include Registered Email™ technology that provides legal proof of delivery and content. Additionally, RMail offers electronic signatures and large file sharing.
Integrations include Microsoft Outlook, Gmail, Yahoo Mail, AOL Mail, Office 365, Salesforce, Dropbox, Box, Google Drive, and SharePoint.
Pros and cons
Pros:
- Electronic signature feature
- Provides legal proof of encrypted email delivery
- Integrates with common email platforms
Cons:
- Might be overkill for casual users
- UI could be more intuitive
Mimecast stands tall as a holistic solution for email security, specially tailored for big enterprises. Given its scalability and comprehensive approach, it's an ideal fit for businesses with vast networks needing robust protection.
Why I Picked Mimecast: Upon evaluating multiple enterprise-grade encryption solutions, Mimecast continually appeared at the top of my list. I chose it due to its sterling reputation and ability to handle the complexities of large-scale operations. Mimecast, in my opinion, is the go-to for enterprises demanding top-tier email security.
Standout Features & Integrations:
Features include a multi-layered approach to email security, encompassing protection from malware, phishing, and impersonation attacks. Additionally, it offers continuity solutions to ensure uninterrupted email access.
Integrations include Microsoft Office 365, Microsoft Exchange, Google Workspace, Outlook, Salesforce, ServiceNow, Splunk, IBM QRadar, Cisco, and Palo Alto Networks.
Pros and cons
Pros:
- Comprehensive enterprise-level protection
- A multi-layered approach to threats
- A wide array of integrations with enterprise solutions
Cons:
- Complexity requires dedicated IT personnel
- Some features may not be used by every organization
ProtonMail is a security-focused email service based in Switzerland, renowned for its robust data protection laws. Leveraging the strengths of Swiss regulations, it provides a platform for secure emailing without compromising user data.
Why I Picked ProtonMail: When I was comparing email platforms known for security, ProtonMail consistently surfaced at the top. It's the Swiss foundation that gives it an edge, making it different from its counterparts. In my opinion, those wanting the assurance of Swiss-based email security should look no further than ProtonMail.
Standout features & integrations:
Features include end-to-end encryption, ensuring emails remain confidential. The self-destructing messages feature enhances privacy further. However, to maintain its security ethos, ProtonMail offers limited third-party integrations.
Integrations include Microsoft Outlook, Apple Mail, Mozilla Thunderbird, Gmail, Yahoo Mail, Outlook.com, AOL Mail, Zoho Mail, Fastmail, and Tutanota.
Pros and cons
Pros:
- End-to-end encryption
- Benefits from Swiss data protection laws
- Self-destructing email feature
Cons:
- The free version has storage limitations
- No support for POP3, only IMAP
Proofpoint Email Protection is a security-focused solution designed to safeguard organizations from email threats. Its robust framework excels in keeping malicious actors at bay, especially in advanced threat scenarios.
Why I Picked Proofpoint Email Protection: During my exploration of email security solutions, Proofpoint Email Protection consistently stood out due to its comprehensive coverage against advanced threats. What makes this tool different is its intricate and layered approach to detecting and combating sophisticated attacks. In my assessment, for organizations keen on ensuring top-tier defense against advanced email threats, Proofpoint remains unmatched.
Standout Features & Integrations:
Features include machine learning algorithms that identify and block threats, detailed reporting on email security incidents, and adaptive security measures that evolve with new threats.
Integrations include Microsoft Office 365, Google Workspace, Microsoft Exchange, Slack, Salesforce, ServiceNow, Splunk, IBM QRadar, Cisco, and Palo Alto Networks.
Pros and cons
Pros:
- Comprehensive advanced threat protection
- Detailed threat intelligence insights
- Easily integrates with enterprise systems
Cons:
- Might be complex for smaller organizations
- Requires trained personnel for optimal use
Barracuda champions a multi-faceted approach to email security. By offering multiple layers of defense against varied email threats, it's the ideal solution for businesses wanting a comprehensive shield against malicious actors.
Why I Picked Barracuda: My judgment, after a thorough comparison of email security platforms, consistently leaned towards Barracuda due to its comprehensive layered defense. I believe it stands apart in defending against an array of email-borne threats. For organizations that seek a holistic email protection suite, Barracuda is my top recommendation.
Standout Features & Integrations:
Features Barracuda delivers protection against phishing, malware, and ransomware through its multi-layered approach. Not only does it filter inbound threats, but it also educates users through simulations to recognize potential risks.
Integrations include Microsoft Office 365, Microsoft Exchange, Google Workspace, Outlook, Salesforce, SharePoint, Cisco, Dropbox, Box, and Slack.
Pros and cons
Pros:
- Comprehensive defense against varied threats
- User awareness training through simulations
- Extensive integration possibilities
Cons:
- Some features may overlap with existing tools
- Requires dedicated staff for maximum efficiency
Tutanota is an innovative email service that offers total encryption for users' mailboxes. Prioritizing security and privacy, it emerges as a top choice for those wanting comprehensive protection of their emails from start to finish.
Why I Picked Tutanota: In the process of determining which email services offer superior security features, Tutanota consistently drew my attention. What makes it truly distinct is its unwavering commitment to end-to-end encryption. I'm convinced that for those who value encrypted mailboxes above all, Tutanota is the optimal choice.
Standout Features & Integrations:
Features include automatic end-to-end encryption for emails, even including attachments and calendars. Users don’t need to share or exchange any keys, as the platform manages this internally.
Integrations include Google Calendar, Microsoft Outlook, iCal, Apple Calendar, Thunderbird, Nextcloud, Owncloud, CalDAV, CardDAV, and WebDAV.
Pros and cons
Pros:
- Comprehensive end-to-end encryption
- Encrypted calendar included
- Open-source code ensures transparency
Cons:
- The interface might be plain for some
- Migration from other platforms can be tedious
Virtru emphasizes the secure sharing of sensitive data across various networks without compromising privacy or compliance. This tool has been engineered to ensure that wherever data travels, it remains protected.
Why I Picked Virtru: In my quest to find solutions that offer impeccable data protection across networks, Virtru emerged as a strong contender. The decision was based on its unique ability to encrypt data in transit, at rest, and even when shared externally. For any organization that frequently shares data across different networks and desires top-notch security, I believe Virtru is the right choice.
Standout Features & Integrations:
Features include persistent data protection, access revocation, and secure forwarding. It integrates efficiently with platforms like Gmail and Microsoft Outlook, making it more adaptable to different business environments.
Integrations include Google Workspace, Microsoft Office 365, Gmail, Outlook, Salesforce, Zendesk, Box, Dropbox, Slack, and Amazon S3.
Pros and cons
Pros:
- Persistent data protection, even for external sharing
- User-friendly with easy-to-use encryption
- Integrates with major email platforms
Cons:
- Onboarding might require a slight learning curve
- Mobile experience may not be as refined
FlowCrypt simplifies the concept of PGP encryption for Gmail users. With an emphasis on user-friendliness, it bridges the gap between advanced email security and everyday Gmail communications.
Why I Picked FlowCrypt: The beauty of FlowCrypt lies in its simplicity, and after comparing various PGP solutions, this one felt the most accessible. I appreciate how it integrates with Gmail, making it the tool I believe is best for individuals wanting to dip their toes into the PGP world without wading into technical complexities.
Standout Features & Integrations:
Features include PGP encryption directly within the Gmail interface. Users can encrypt, decrypt, sign, and verify emails with ease. While primarily designed for Gmail, its compatibility extends to Google Workspace, allowing businesses to take advantage of PGP encryption without the usual hassles.
Integrations include Gmail, Google Workspace, Microsoft Outlook, Yahoo Mail, AOL Mail, Yandex Mail, Mail.ru, Zoho Mail, ProtonMail, and Fastmail.
Pros and cons
Pros:
- Intuitive PGP encryption within Gmail
- Compatible with Google Workspace
- Ensures end-to-end encrypted communications
Cons:
- Larger teams might require additional setup
- Advanced users might seek more granular controls
Zix is a powerhouse in the realm of email encryption, specifically focusing on policy-driven solutions. Catering to businesses that require flexibility in setting encryption rules, Zix is the go-to for those who prioritize policy-based controls.
Why I Picked Zix Email Encryption: After comparing several email encryption platforms, I selected Zix primarily because of its robust policy-based features. Its ability to let businesses set their encryption standards is unparalleled. I'm of the opinion that Zix is the frontrunner for organizations keen on dictating their encryption policies.
Standout Features & Integrations:
Features include a policy-based encryption mechanism that lets businesses decide when and how emails are encrypted. The tool also provides automatic scanning of outbound emails to ensure compliance.
Integrations include Microsoft Office 365, Microsoft Exchange, Outlook, Google Workspace, Salesforce, Cisco, IBM Security, McAfee, Symantec, and Barracuda.
Pros and cons
Pros:
- Advanced policy-based encryption controls
- Automatic scanning for compliance
- Wide-ranging integration capabilities
Cons:
- Might be too complex for small businesses
- Initial setup can be time-consuming
Other Email Encryption Software
Here are some additional email encryption software options that didn’t make it onto my shortlist, but are still worth checking out:
- StartMail
For privacy-focused email communication
- NeoCertified
For integrated secure email APIs
- Kiteworks
For streamlined secure file sharing
- Mailfence
For end-to-end encrypted communication
- Posteo
For green and sustainable email service
- Appriver
For threat intelligence and response
- Clearswift
For adaptive data loss prevention
- Egress Secure Email
For data loss prevention and protection
- Symantec Email Security
For cloud-based email threat defense
- Hushmail
For encrypted webmail with no ads
- LuxSci Email and Web Security
For comprehensive email and web security
- Workspace ONE Boxer
For integrated mobile productivity
- SendSafely
For encrypted file transfers and email
- Mailvelope
For browser-based PGP email encryption
- Sealit
For identity-based secure communication
Email Encryption Software Selection Criteria
When selecting the best email encryption software to include in this list, I considered common buyer needs and pain points like data security and regulatory compliance. I also used the following framework to keep my evaluation structured and fair:
Core Functionality (25% of total score)
To be considered for inclusion in this list, each solution had to fulfill these common use cases:
- Encrypting email messages
- Securing email attachments
- Providing end-to-end encryption
- Supporting regulatory compliance
- Offering secure email access
Additional Standout Features (25% of total score)
To help further narrow down the competition, I also looked for unique features, such as:
- Self-destructing emails
- Encrypted email search
- Custom branding options
- Secure file sharing
- Detailed audit logs
Usability (10% of total score)
To get a sense of the usability of each system, I considered the following:
- Intuitive user interface
- Easy navigation
- Minimal learning curve
- Responsive design
- Customizable settings
Onboarding (10% of total score)
To evaluate the onboarding experience for each platform, I considered the following:
- Availability of training videos
- Interactive product tours
- Access to webinars
- Comprehensive documentation
- Supportive customer service
Customer Support (10% of total score)
To assess each software provider’s customer support services, I considered the following:
- 24/7 support availability
- Live chat options
- Comprehensive help center
- Response time for inquiries
- Availability of support in multiple languages
Value For Money (10% of total score)
To evaluate the value for money of each platform, I considered the following:
- Competitive pricing
- Features included in basic plan
- Discount options for annual billing
- Transparency in pricing structure
- Additional costs for premium features
Customer Reviews (10% of total score)
To get a sense of overall customer satisfaction, I considered the following when reading customer reviews:
- Overall satisfaction ratings
- Feedback on ease of use
- Comments on customer support
- Reviews on security effectiveness
- User experiences with onboarding process
How to Choose Email Encryption Software
It’s easy to get bogged down in long feature lists and complex pricing structures. To help you stay focused as you work through your unique software selection process, here’s a checklist of factors to keep in mind:
| Factor | What to Consider |
|---|---|
| Scalability | Can the software grow with your team? Consider the number of users it supports and whether it can handle increased email volume without performance issues. |
| Integrations | Does it work with your existing tools? Look for native integrations with your email client, CRM, and other key software to ensure a smooth workflow. |
| Customizability | Can you tailor it to your needs? Check if the software allows you to adjust settings and features to fit your specific processes and security requirements. |
| Ease of use | How intuitive is the interface? Ensure your team can easily navigate and use the software without extensive training or support. |
| Implementation and onboarding | How long does it take to set up? Consider the time and resources needed for a successful rollout, including training materials and support from the vendor. |
| Cost | What’s the total cost of ownership? Compare pricing plans, including any hidden fees or additional charges for premium features, to find the best fit for your budget. |
| Security safeguards | Are the security measures adequate? Evaluate encryption standards, data protection policies, and any certifications to ensure your data stays safe. |
| Compliance requirements | Does it meet industry regulations? Verify that the software complies with relevant standards like GDPR or HIPAA to avoid legal issues and maintain trust. |
What Is Email Encryption Software?
Email encryption software is a tool designed to secure email communications by encoding messages, ensuring only intended recipients can read them. These tools are commonly used by professionals in industries like healthcare, finance, and legal, where data privacy is crucial. Encryption, secure attachments, and access controls help with protecting sensitive information and complying with regulations. Overall, these tools provide peace of mind by safeguarding confidential communications.
Features
When selecting email encryption software, keep an eye out for the following key features:
- End-to-end encryption: Protects email content by ensuring only intended recipients can read the messages, enhancing privacy and security.
- Secure attachments: Encrypts files sent via email, preventing unauthorized access and maintaining data confidentiality.
- Compliance support: Helps organizations meet industry regulations like GDPR or HIPAA, avoiding legal issues and ensuring trust.
- Customizable settings: Allows users to adjust features and security measures to suit specific needs and workflows.
- Integration capabilities: Works seamlessly with existing tools like email clients and CRMs, ensuring smooth workflows and productivity.
- Granular access controls: Provides options to manage who can view, edit, or forward emails, enhancing security management.
- Audit logs: Track access and actions taken on emails, providing transparency and accountability for security purposes.
- User-friendly interface: Ensures ease of use with intuitive navigation, reducing the need for extensive training.
- Self-destructing messages: Automatically deletes emails after a set time, adding an extra layer of privacy for sensitive communications.
- Secure file sharing: Allows users to send large files securely, maintaining confidentiality during transmission.
Benefits
Implementing email encryption software provides several benefits for your team and your business. Here are a few you can look forward to:
- Enhanced security: Protects sensitive information from unauthorized access with features like end-to-end encryption and secure attachments.
- Regulatory compliance: Helps meet industry standards such as GDPR and HIPAA, reducing the risk of legal issues.
- Data privacy: Ensures that only intended recipients can read emails, maintaining confidentiality and trust.
- Improved control: Offers granular access controls, allowing you to manage who can view or edit emails.
- Efficient communication: Integrates with existing tools, ensuring smooth workflows without interrupting productivity.
- Accountability: Provides audit logs to track access and actions, offering transparency in email management.
- User convenience: Features like self-destructing messages and a user-friendly interface make secure communication straightforward and easy.
Costs & Pricing
Selecting between email encryption services requires an understanding of the various pricing models and plans available. Costs vary based on features, team size, add-ons, and more. The table below summarizes common plans, their average prices, and typical features included in email encryption software solutions:
Plan Comparison Table for Email Encryption Software
| Plan Type | Average Price | Common Features |
|---|---|---|
| Free Plan | $0 | Basic encryption, limited storage, and essential email support. |
| Personal Plan | $5-$15/user/month | End-to-end encryption, secure attachments, and basic customer support. |
| Business Plan | $15-$30/user/month | Advanced encryption, integration options, and priority customer support. |
| Enterprise Plan | $30-$50/user/month | Custom encryption settings, compliance tools, dedicated support, and large storage. |
Email Encryption Software FAQs
Here are some answers to common questions about email encryption software:
How does email encryption work?
Email encryption works by encoding your email content so that only the intended recipient can read it. When you send an encrypted email, it uses a public key to lock the message, and the recipient’s private key unlocks it. This ensures that unauthorized parties can’t access your communications. Make sure your team understands how to manage keys properly to maintain security.
Can I encrypt emails on my mobile device?
Yes, many email encryption software solutions offer mobile support. You can encrypt and send secure emails directly from your smartphone or tablet. Check if the software you’re considering has a mobile app or is compatible with your device’s email client. This ensures you can maintain security even when you’re on the go.
Is email encryption necessary for compliance?
Yes, email encryption is often necessary to meet compliance requirements in industries like healthcare and finance. Regulations like HIPAA and GDPR mandate the protection of sensitive information. Encrypting emails helps your organization avoid penalties and protect data. Always verify that your chosen software meets the specific compliance standards relevant to your industry.
Will email encryption slow down my email performance?
No, modern email encryption software is designed to work efficiently without significant delays. While encryption adds a step to the sending process, most users won’t notice a difference in speed. Ensure your internet connection is stable, and choose a reputable software provider to minimize any performance issues.
What’s Next:
If you're in the process of researching email encryption software, connect with a SoftwareSelect advisor for free recommendations.
You fill out a form and have a quick chat where they get into the specifics of your needs. Then you'll get a shortlist of software to review. They'll even support you through the entire buying process, including price negotiations.