Top Software Picks & Reviews

IT Security

Top 5 Email Encryption Software Of 2025

By TechDogs Editorial Team

Overall Rating

Overview

Imagine sending a letter in a glass envelope, floating through the air, where anyone can peek inside. Well, what if that letter held a coupon code as a gift for your best friend or your banking details or, worse - the password to your work email? Yikes!

In a world where emails are the heart of business communication, securing them has never been more essential to protect what matters most.

In 2025, your emails will be just as exposed - unless you use the right encryption software to seal them up tight. So, are you ready to lock your email messages away from prying eyes?

Let’s dive into the Top 5 Email Encryption Software Of 2025 that will ensure your messages stay private - no matter where they travel.

Read on!

Ever felt like sending an email is akin to tossing a message into the wind and hoping it lands safely? Sure, it gets to where it needs to go but who knows how many curious eyes it passed along the way?

In a world where keeping things private feels harder than ever, securing your emails is like locking up your personal diary - it just makes sense. Thankfully, email encryption is here to save the day.

Ready to discover the best email encryption software of 2025 that’ll keep your secrets safe and sound? Keep reading.

What Is Email Encryption Software

Email Encryption Software is like a lock for your email messages. It protects sensitive information by converting your email messages into unreadable code, ensuring only the recipient with the decryption key can read them.

Whether it's personal details, business secrets or sensitive files - email encryption keeps everything secure, so your messages stay between you and the right person, just as they should.

Last year we covered the top Email Encryption Software of 2024. Leveling up in 2025, we have AI-powered threat detection, real-time data protection and seamless cloud integrations. As 2025 approaches, these advancements will set new standards in email security, making your emails highly secure!

On this note, let’s move ahead to explore the Top 5 Email Encryption Software Of 2025 and see who’s leading the email security game.

Top 5 Email Encryption Software Of 2025

The best enterprise email encryption software offers advanced features to keep your communications safe and secure from emerging risks. We have made it easy for you by listing them down, so you can make the right choice!

Tool 1: Paubox

Paubox, a fresh entry on this year's list, is the go-to solution for secure, HIPAA-compliant emailing, making it easy and safe for both senders and recipients. Trusted by over 6,000 companies, Paubox secures 99 million emails each month and was ranked #1 in several categories in the G2 Spring 2024 Report, including Email Encryption for Mid-Market and Small Businesses. It was also recognized for Best Support for Mid-Market in Fall 2024, showing its dedication to top-notch email encryption service.

Why We Chose This Tool

Paubox is your email's best friend, ensuring top-notch security and HIPAA compliance with zero hassle. Whether you're using Google Workspace or Microsoft 365, you can send emails just like you normally would—no special software needed. Well, here’s the fun part - Paubox automatically encrypts your emails and attachments with top-notch TLS encryption, making sure your messages are wrapped in a virtual security blanket as they travel across the web. If your recipient can’t accept encrypted emails, no problem—Paubox creates a secure link so they can safely view the message in their browser.

TechDogs-“Tool 1: Paubox”-“A Screenshot Of Paubox Dashboard”

Source

When it comes to security, Paubox acts as a smart protector - blocking spam, malware and phishing with its built-in filters. It also offers features like advanced threat protection, email monitoring, archiving and reporting to keep everything running smoothly.

Paubox integrates smoothly with popular email platforms like G Suite, Office 365, Microsoft Outlook, as well as tools like Salesforce and Zendesk. This seamless integration allows businesses to adopt the software without disrupting their existing workflows.

Paubox offers three plans - Standard ($29/month) for HIPAA-compliant email with automatic encryption, Plus ($59/month) with added protection against spam, ransomware and phishing. Finally, Premium ($69/month), which includes archiving and data loss prevention.

What Users Like And Dislike

Users like Paubox for its simplicity, strong security and excellent customer support. On the downside, some find it pricey, with setup difficulties and a lack of certain features. Overall, it’s a great choice as a secure Email Encryption Software.

Tool 2: Spike

Spike, a new addition to this year’s lineup, is an all-in-one platform that brings together business email and team chat. The platform has gained recognition for its innovative approach, including being named the 7th Easiest to Use in Email Encryption Software on G2. With its clean design and strong email security features, Spike consistently earns top rankings on industry platforms, making it a trusted choice for businesses looking for a more intuitive way to manage communication and collaboration.

Why We Chose This Tool

Spike combines email, team chat and task management into one easy-to-use platform, making collaboration simple and smooth. Its unique "Conversations" feature turns email threads into chat-style exchanges which make communication feel more relaxed and intuitive. Spike offers several essential features that enhance email security and ensure your communication is protected.

TechDogs-“Tool 2: Spike”-“A Screenshot Of Spike Dashboard”

Source

With end-to-end encryption, every email is secured so only the intended recipient can access the content, ensuring privacy. Spike takes data security seriously, encrypting all data using AES-256 encryption with a unique key for each message. From login to transmission to keeping your information safe, Spike does it all using regular software updates. Spike is available on Windows, MacOS, iOS, Android and the web, making it easy to stay connected and collaborate smoothly - no matter what device you're using.

Spike offers three plans to suit different needs. The Free Plan gives you a smart inbox with basic features. The Pro Plan at $5/month adds more tools like a unified inbox and priority support. The Ultimate Plan at $10/month includes unlimited email addresses, larger file uploads and VIP support. All plans come with secure video calls, Spike Magic AI (an email writer) and a strong privacy guarantee.

What Users Like And Dislike

Users appreciate Spike for its ease of use, efficient email management and effective communication features. However, some dislike its missing or limited features, occasional email issues and the high pricing. Overall, Spike offers a solid, user-friendly experience for businesses looking to secure their emails.

Tool 3: Proofpoint

Proofpoint makes its comeback this year! It is trusted by 1.5 million customers, including leading Fortune 1000 companies, to safeguard their emails. The company’s excellence hasn’t gone unnoticed as it was named a Representative Vendor in the 2023 Gartner® Market Guide for Email Security. Moreover, Proofpoint took home the 2024 Cybersecurity Excellence Award for Email Security, recognizing its powerful threat protection solutions.

Why We Chose This Tool

Proofpoint offers both cloud-based and on-premises solutions to block unwanted, malicious and impersonator emails. It provides detailed search features and full visibility into all encrypted messages so you can always see what's coming through. Outbound controls like encryption and data loss prevention (DLP) keep your sensitive information safe, while its continuity features ensure your communications continue without disruption during an email outage. Proofpoint stands out with its ability to detect business email compromise (BEC) and malware-free threats using machine learning. Its advanced email firewall allows for flexible email routing.

TechDogs-“Tool 3: Proofpoint”-“A Screenshot Of Proofpoint Dashboard”

Source

Proofpoint gives you control over which emails make it to your inbox and help reduce unwanted clutter. Its Smart Search feature simplifies reporting and email tracking. With strong protection against malware, phishing, spam and compliance support, Proofpoint ensures your email security is both effective and easy to manage. It integrates with platforms such as Microsoft 365, Google Workspace, Microsoft Exchange, Salesforce, Slack, Box, OneDrive, SharePoint, SIEM platforms and Active Directory, helping businesses enhance their email security.

Though the pricing is not available in the public domain, interested businesses can contact Proofpoint directly for a customized quote based on their specific needs and the scale of their business.

What Users Like And Dislike.

Users appreciate Proofpoint's strong email security, ease of use and excellent customer support. However, some dislike issues with email filtering, false positives and the outdated user interface. Overall, Proofpoint is highly effective for email encryption.

Tool 4: Mimecast

New to the list is Mimecast, trusted by tens of thousands of organizations worldwide, from small businesses to Fortune 500 companies. Mimecast was recognized as a Spring 2024 Leader in EMEA Secure Email Gateway and named a Leader in the 2024 Omdia Email Security Universe, Mimecast’s commitment to innovation and customer satisfaction has earned it a strong reputation as a top provider of email protection solutions.

Why We Chose This Tool

Mimecast’s advanced email security is no less than a superhero for your inbox! It is powered by AI to kick out the worst offenders - phishing, ransomware, social engineering and impersonation. It’s got everything you need to keep your email safe and sound - anti-malware, anti-spam and anti-phishing protection, plus advanced filtering and quarantine options for any shady characters trying to sneak in.

TechDogs-“Tool 4: Mimecast”-“A Screenshot Of Mimecast Dashboard”

Source

Outbound email monitoring ensures your sensitive info stays secure, with role-based rules and easy-to-digest reporting for tailored security that’s both smart and simple. It is compatible with platforms like Microsoft 365, Google Workspace, Salesforce and more, making email protection seamless.

Mimecast offers flexible plans to suit different business needs. The "Protect" plan includes AI-powered email security, phishing protection and spam filtering. "Protect Plus" adds email continuity and data protection, while the "Custom" plan provides comprehensive security with DMARC management and cloud archiving.

What Users Like And Dislike

Users like Mimecast for its strong email security service, ease of use and effective spam blocking. However, it faces some criticism for its complexity, poor user interface and configuration difficulties. Overall, it offers powerful email protection capabilities for businesses.

Tool 5: Proton Mail

Once again, Proton Mail makes its mark on this year’s list. As the world’s largest encrypted email company, Proton Mail protects over 100 million users globally from modern cyber-attacks. Ranked 9th for ease of use in Email Encryption Software on G2 in 2024, it continues to lead the way in secure email solutions, building on its solid reputation for prioritizing email security.

Why We Chose This Tool

Proton Mail is built with a clear mission - to put privacy and security in the hands of its users. It uses end-to-end encryption and zero-access encryption to ensure that only the user can read their emails — not even Proton can access them!

To keep accounts safe, Proton supports hardware security keys like YubiKey for two-factor authentication (2FA), offering a physical layer of protection that’s nearly impossible for attackers to bypass. Known for its advanced encryption and strong privacy policies, Proton Mail also shields users from trackers by blocking tracking pixels and hiding IP addresses.

TechDogs-“Tool 5: Proton Mail”-“A Screenshot Of Proton Mail Dashboard”

Source

Its built-in PGP support and key transparency make encryption seamless by managing keys automatically and verifying contacts to protect against man-in-the-middle attacks. With additional defenses like PhishGuard, link protection and elliptic curve cryptography, Proton Mail provides comprehensive protection without requiring users to do any extra work.

Proton Mail offers flexible plans like - Mail Essentials ($7.99/month), Mail Professional ($10.99/month), Business Suite ($14.99/month) and a customizable Enterprise Plan for large teams, nonprofits or public sector organizations.

What Users Like And Dislike

Users appreciate Proton's strong security, encryption and ease of use. However, limited storage and features can be a drawback. Overall, Proton excels in privacy-focused tools for emailing.

Final Take

In a world where data privacy is more important than ever, email encryption is a must. Just like you wouldn’t send a letter in a glass envelope for everyone to peek at, why risk sending your sensitive information unprotected?

By using software to encrypt emails, you’re taking a proactive step to safeguard your business information. With the right software, securing your communications becomes simple, smart and effective.

Protect what matters with encryption, the key to securing your emails. After all, peace of mind is just a click away!

P.S. Always remember to visit the vendor's site for the latest information!


Starting Price	$29/month	$5/month	NA	NA	$7.99/month
Avg. User Rating	4.9	4.6	4.6	4.4	4.4
Best For	Companies of all sizes	SMBs	SMBs	Companies of all sizes	Companies of all sizes
Free Trial	14 days	Demo	30 days	30 days	30 days
Top Customers	Arisa Health, Rollover Rep and Crowd Health	Mozilla, Wix, NFX and Insight Partners	Michigan State University, ACCO Brands and Pacific Life	Vodacom, ServiceNow and Michelin	BuzzFeed, LifeVantage and RedBird ReDesign

Frequently Asked Questions

What Is Email Encryption Software?

Email Encryption Software secures your messages by converting them into a coded format so that only the intended recipient can decrypt and access the email content. This way it protects sensitive data from unauthorized access.

Why Is Email Encryption Important?

Email encryption safeguards sensitive data like bank details, passwords and personal communications from hackers, preventing unauthorized access and ensuring privacy when emails are transmitted across the internet.

How Does Email Encryption Work?

Email encryption uses algorithms to scramble your message into unreadable code and only the recipient with the correct decryption key can read it, keeping your communication private and secure.

Enjoyed what you read? Great news – there’s a lot more to explore!

Dive into our content repository of the latest tech news, a diverse range of articles spanning introductory guides, product reviews, trends and more, along with engaging interviews, up-to-date AI blogs and hilarious tech memes!

Also explore our collection of branded insights via informative white papers, enlightening case studies, in-depth reports, educational videos and exciting events and webinars from leading global brands.

Head to the TechDogs homepage to Know Your World of technology today!

Disclaimer - Reference to any specific product, software or entity does not constitute an endorsement or recommendation by TechDogs nor should any data or content published be relied upon. The views expressed by TechDogs' members and guests are their own and their appearance on our site does not imply an endorsement of them or any entity they represent. Views and opinions expressed by TechDogs' Authors are those of the Authors and do not necessarily reflect the view of TechDogs or any of its officials. While we aim to provide valuable and helpful information, some content on TechDogs' site may not have been thoroughly reviewed for every detail or aspect. We encourage users to verify any information independently where necessary.

Tags:

Top 5 Email Encryption Software Of 2025 Email Encryption Software Top Email Encryption Software Paubox Spike Proofpoint Mimecast Proton Mail

Join The Discussion