Compare the Top Email Encryption Software for Mac as of April 2025

What is Email Encryption Software for Mac?

Email encryption software ensures the confidentiality and integrity of email communications by converting messages into unreadable formats that can only be decrypted by authorized recipients. It uses encryption protocols such as S/MIME and PGP to protect sensitive information from interception, eavesdropping, and unauthorized access. The software helps organizations comply with data privacy regulations like GDPR, HIPAA, and CCPA by securing emails containing personal or financial information. Email encryption can be applied at the message level, attachment level, or entire inbox, providing versatile protection for both internal and external communications. By safeguarding email content, businesses can reduce the risk of data breaches, maintain customer trust, and avoid costly compliance fines. Compare and read user reviews of the best Email Encryption software for Mac currently available using the table below. This list is updated regularly.

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    Mailfence

    Mailfence

    Mailfence

    Mailfence is an encrypted email service that offers OpenPGP based end-to-end encryption and digital signatures. Mailfence comes with a plethora of features that boost collaboration without compromising security and convenience. Mailfence documents allow you to safely store and edit documents, you can also share docs with your team with the push of a button. Mailfence calendar will keep your tasks, meetings, and events all in one secure place. Mailfence contacts will store your contacts and it will give you the ability to create mailing lists to maximize efficiency. We designed Mailfence to be a fully interoperable suite, which means you can synchronize Mailfence with most services out there. Mailfence business offers fully customizable whitelabel versions of the Mailfence interface. To put the cherry on top, Mailfence donates 15% of revenues of PRO subscriptions to IFF and EDRI to bolster the fight for Online privacy.
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    Starting Price: $2.50/month/user
  • 2
    Proton Mail

    Proton Mail

    Proton AG

    Proton Mail is incorporated in Switzerland and all our servers are located in Switzerland. This means all user data is protected by strict Swiss privacy laws. All emails are secured automatically with end-to-end encryption. This means even we cannot decrypt and read your emails. As a result, your encrypted emails cannot be shared with third parties. No personal information is required to create your secure email account. By default, we do not keep any IP logs which can be linked to your anonymous email account. Your privacy comes first. We believe email privacy should be available to all. That's why our code is open source and basic Proton Mail accounts are always free. You can support the project by donating or upgrading to a paid account. Proton Mail can be used on any device without software install. Proton Mail Business allows you to keep your business email address. Send and receive encrypted emails both inside and outside of your organisation.
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    Starting Price: $6.25 per user per month
  • 3
    Tutanota

    Tutanota

    Tutanota

    Secure email for everybody. Tutanota is the world's most secure email service, easy to use and private by design. Sign up for free to take control of your mailbox. With end-to-end encryption and 2FA, your emails have never been more secure. The built-in encryption guarantees that your mailbox belongs to you: Nobody can decrypt or read your data. Tutanota is open source so security experts can verify the code that protects your emails. Our Android app is Google-free making Tutanota the best open source email service. With apps for iOS and Android, your secure emails are available anytime. Our fast web client & fully-featured apps make sure encrypted emails are a pleasant experience. We take your email needs seriously by offering you a secure email service free from advertisements. We work around-the-clock to bring you an encrypted email service that lets you focus on the important things. From our clear and minimalist design to whitelabel customizations.
    Starting Price: €1.20 per month
  • 4
    RMail

    RMail

    RPost

    RMail® is the e-security platform by RPost®, a global leader since 2000. RMail specializes in elegantly easy to use email encryption for privacy and compliance, e-signatures, legal e-delivery proof, secure file sharing, email impostor protection, document rights management, and AI-infused services to prevent data leaks and human e-security errors. RMail’s transmission e-security services are most often used by businesspeople or business systems that send important, sensitive, or consumer-regulated information. These RMail services are generally applied to those messages where the sender needs functionality beyond standard email in terms of (a) easier to use and more automated email encryption for privacy compliance, (b) returning a verifiable proof record of who said what to whom by email, (c) assurance and peace of mind related to delivery and open status of important and time-deadline email, (d) need a timestamped proof of content delivered, (f) need to share large files securely.
    Starting Price: $7/month/user
  • 5
    Z1 SecureMail Gateway
    25% of the 100 German companies with the highest turnover choose Zertificon. Z1 SecureMail Gateway is our highly automated Enterprise Email Encryption solution for effortless, secure communications with anyone, anywhere. Your entire organization encrypts and decrypts, just as well manages & verifies email signatures smoothly in the background. Z1 SecureMail Gateway requires minimal maintenance. And the browser-based admin interface needs no special skills. Keys are managed automatically & central policies enforce security. Integration is fast into your Cloud or On-premises email infrastructure. Your workflows and business are uninterrupted — no employee training needed plus frictionless experience for recipients. With Z1 SecureMail Gateway, encryption is centrally configurable and proofed against human error. You easily achieve and maintain compliance and the highest security standards. You also own all encryption keys and attain German-engineered data sovereignty with no backdoors.
    Starting Price: from $ 1.50 per user/per month
  • 6
    EncryptTitan
    EncryptTitan is a 100% cloud based encryption system for MSPs & Enterprises that allows users to exchange information securely via email.  EncryptTitan provides organizations with the tools needed to adhere to state and federal privacy regulations while protecting their organization. EncryptTitan has pre-built DLP policies and settings that will look for regular content in the message body or attachment to automatically encrypt messages. Meet compliance requirements for protecting sensitive, private information. Providing data breach protection and avoiding costly fines and penalties. The outlook plug in can be used with our keyword encryption deployment, where the user can select which emails to be encrypted for the add in. EncryptTitan helps the safeguarding of private information & avoidance of litigation & bad press which can impact customer trust. Book your demo today and learn more about EncryptTitan.
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