Compare the Top Email Encryption Software in Asia as of November 2025

What is Email Encryption Software in Asia?

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 in Asia currently available using the table below. This list is updated regularly.

  • 1
    Proton Mail

    Proton Mail

    Proton AG

    Proton Mail is the simplest way to protect your communications with built-in end-to-end encryption. Prevent data breaches, stay compliant with regulations like GDPR and HIPAA, and earn client trust. Protected by Swiss privacy laws and trusted by over 50,000 businesses, Proton Mail keeps your business data confidential and under your control. With Proton Mail and Calendar, your team can securely manage their inbox and schedule, while your organization maintains a professional presence with support for custom email domains and personalized branding. And with the Easy Switch tool, migrating from Google or Microsoft is seamless, no IT expertise required.
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    Starting Price: $6.99/user/month
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  • 2
    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
  • 3
    StartMail

    StartMail

    StartMail

    StartMail is a secure, private email provider designed to protect your privacy. With StartMail, you can create disposable email addresses anytime, keeping your real inbox safe from spam. We believe privacy is a fundamental human right, and we’ve made it simple for you to protect yours. Even when your recipient doesn’t use encryption, you can still send password-protected messages with just one click. Our service complies with Dutch privacy laws—some of the strictest in the world—and adheres to European privacy standards. For professionals, StartMail also provides the option to secure your own domain with custom email addresses. No software downloads or installations are required; our easy setup gets you up and running in minutes.
    Starting Price: $35.93 per year
  • 4
    Posteo

    Posteo

    Posteo

    Posteo is a secure and sustainable email service based in Berlin that focuses on privacy and environmental responsibility. With 100% green energy powering their operations, Posteo offers ad-free email accounts that are built to ensure user data remains private. It provides features like email encryption, calendar syncing, and an address book, all accessible from multiple devices. The service prides itself on not collecting personal data, protecting user identity, and offering a simple and intuitive user experience for just €1 per month.
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    Tuta

    Tuta

    Tuta

    Tuta offers a highly secure, encrypted email, calendar, and contacts service designed to give users complete control over their data. With end-to-end encryption powered by quantum-safe cryptography, Tuta ensures that all your communications are private and safe from surveillance. The platform is easy to use, supports mobile apps for Android and iOS, and is ad-free, offering a seamless experience across multiple devices. Tuta is committed to using renewable energy to power its servers, ensuring privacy while contributing to a greener future.
    Starting Price: €1.20 per month
  • 6
    LuxSci

    LuxSci

    Lux Scientiae

    LuxSci provides HIPAA-compliant web and email communications services. LuxSci creates uniquely secure and customizable enterprise-grade environments and solutions that enable organizations to confidently meet their specific business and security needs at scale. LuxSci’s HIPAA-compliant email and web solutions are HITRUST certified and include: • Secure High Volume Sending for delivering massive volumes of transactional and marketing emails. • Secure SMTP Connector for encrypting outbound emails sent from Microsoft 365 and Google Workspace. • Secure Email Marketing platform for creating and sending marketing campaigns with ePHI. • Secure Email Hosting for reliable and secure day-to-day business email. • Fully managed Secure Web and Database Hosting for web applications that require compliance. • Secure Forms to safely collect and store sensitive information. LuxSci provides a full suite of secure technology for companies requiring compliant web and email services.
    Starting Price: $4 per/user/month
  • 7
    Hushmail

    Hushmail

    Hushmail

    Hushmail protects your clients by adding encryption to your emails, web forms and e-signatures. It’s secure, HIPAA-compliant, and trusted by healthcare professionals worldwide. Best of all, Hushmail is easy to set up and use. Send your first encrypted email today, and set up a secure online intake form in minutes. Your Hushmail account works just like a regular email account, with added security features to help keep your data safe. Send and receive encrypted email on the web and iPhone. Access your account using Outlook, Apple Mail or your Android smartphone. Move your forms online in minutes. Hush™ Secure Forms is our secure alternative to old-fashioned paper forms and includes online signing for your most important digital forms. Switching from pen and ink to e-signatures has never been easier.
    Starting Price: $9.99/month/user
  • 8
    CTemplar

    CTemplar

    CTemplar

    We support anonymous usage and do not stockpile your personal data. Therefore, nothing can be made to reveal it. We use strong encryption and state-of-the-art technologies. This ensures the confidentiality of your messages. Iceland has among the strongest privacy laws that allow anonymous usage and instantly deleting your data. CTemplar’s exclusive 4-Wall Protection guarantees complete wall-to-wall protection of your data. Set a phrase that will be shown in your account. This will alert you to any phishing attempt. We allow anonymous payments using Monero. We are still building the monero payment processor so XMR payments are completed by contacting support. Automatic payments can be made with Bitcoin and card. Our server location in Iceland provides nearly unlimited natural energy resources and it's proudly run 100% by green energy, specifically geothermal and hydropower.
    Starting Price: $8 per month
  • 9
    black.com

    black.com

    black.com

    Encrypted email hosting service. Emails are zero-access encrypted (AES-GCM-256 with RSA-OAEP-4096 key sharing) with a password-derived key, which means that not even we can access the contents of your emails at rest. Our system encrypts subjects, headers, message contents, attachments, email drafts and push notifications. Unparalleled commitment to data security with our Austrian-based company, leveraging Swiss-based infrastructure. In a landscape dominated by US tech providers, we utilize the world's most robust privacy protection laws. You start with 25 GB and get 2 GB of additional storage every year - forever. With normal usage, you will never run out of space.
  • 10
    CounterMail

    CounterMail

    CounterMail

    CounterMail is a secure and easy to use online email service, designed to provide maximum security and privacy without any unnecessary complexity. You can access your email account at any time, from anywhere in the world. Your account will always be encrypted and anonymous. CounterMail's encryption works automatically and transparently, it requires no specialized computer skills or knowledge. If you are comfortable using services like Hotmail or Gmail, you will be comfortable using CounterMail's secure email! We are using a strong encryption protocol called OpenPGP, with 4096 bits encryption keys to protect your data. To the best of publicly available information, there is no known method which will allow a person or group to break OpenPGP:s encryption by cryptographic or computational means.
  • 11
    MsgSafe.io

    MsgSafe.io

    MsgSafe.io

    Instantly create as many email addresses as you need - each associated with their own group of contacts. Share addresses with anyone, but keep your real email address private. Stop telecom companies, governments, and hackers from seeing with whom you communicate. Each virtual mailbox is automatically set up with 4096-bit GPG and S/MIME encryption keys and certificates. All email stored at MsgSafe-io is encrypted. You can manage the encryption profile for each contact you communicate with. Protect your entire family or organization by managing all identities and email addresses with the domain you already own. If you don’t own a domain, you can use our domain registration services to purchase a domain integrated with MsgSafe-io and privacy protection. You don’t trust FaceTime, Skype, Duo, Hangouts and similar services hosted by companies like Apple, Microsoft and Google? Try our secure and private audio and video services. You can invite people to call you from a browser link.
    Starting Price: $5 per month
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