Choose the Right Email Security Product for You How to choose?
Free Edition
Auto-configures MV email certificates
US$ 0 / Year / Email
- Auto-configures 1-year RSA MV Email Certificate
- ZTmail sends/receives encrypted emails
Trusted Identity Edition
Auto-configures trusted identity signing certificates
US$ 7.98 ~ 14.98 / Year / Email
- Auto-configures 1-2 year RSA Trusted Identity Signing Certificate
- ZTmail sends/receives encrypted emails and displays trusted identity
Global Eco Edition
Auto-configures globally trusted email certificates
US$ 13.98 ~ 48.98 / Year / Email
- Auto-configures 1-2 year RSA Globally Trusted Email Certificate
- ZTmail sends/receives encrypted emails and displays trusted identity
Choose what identity level to send email.
Recipients see the trusted identity level you choose.
From:
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< user@domain.com >
Upgrade to
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Full name < user@domain.com >
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Organization name < user@domain.com >
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Full name, Organization name < user@domain.com >
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< user@domain.com >
Upgrade to
Encrypted
— Sent to Whom
Every email you send is automatically encrypted,and digitally signed.
Send with T1 / T2 / T3 / T4 identity level of your choice.
Received:
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Sarah Jones
Sponsor Validated
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Michael Brown
Organization Validated
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Emily Williams
Individual Validated
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James Johnson
Mailbox Validated
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John Smith
Identity Not Validated
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Sarah Jones
Sponsor Validated
Encrypted
— Received From Whom
Who sent the encrypted email?Sender identity is clear at a glance.
T1 / T2 / T3 / T4 identity levels clearly displayed.
Three core functions and three technologies
Every email is protected by dual-cryptographic technology (Digital Signature, S/MIME encryption), with AI capabilities and automation.
S/MIME encryption
Every email is end-to-end encrypted by default, using RSA or SM2 algorithms to safeguard privacy throughout the email lifecycle.
Digital Signature
Every email is digitally signed by default to prove trusted sender identity and verify content hasn't been tampered with.
AI Assistant
Freely select AI models, bring your own API key, and customize your AI assistant.
Automated Certificate Configuration
After email account login, email certificate application is automatically completed as user consent, configuring RSA S/MIME certificates as default, SM2 per request. Keys are generated locally and private keys never leave the user's device.
Automated Public Key Exchange
When sending encrypted emails, recipients’ public key certificates are retrieved automatically without prior manual exchange. (Manual exchange is still required with other email clients)
Autonomous Key Management
Encryption Keys are locally generated and stored, supporting one-click export /export to/from user mailbox for backup/restore, ensuring full user control over keys.
AI Assistant: Smart Experience for Sending and Receiving
Freely select AI models, bring your own API key, and control your AI assistant.
When Sending: AI Assistant Helps You Write
Input basic requirements and AI generates a complete email draft
One-click quick reply based on received email content, or draft professional replies from rough outlines
Make your email content more professional and appropriate
One-click translation into multiple languages to reply in the original language
When Receiving: AI Assistant Helps You Read
One-click summary of key points from long emails and threads
Automatically recognize meetings, tasks, and deadlines in emails
Automatically detect anomalies, proactively warn against risks, and accurately identify fraudulent emails
Translate foreign language emails into your preferred language
One Encrypted Email, Your Choice of Algorithms
ZTmail supports multiple cryptographic algorithms: RSA for global interoperability, SM2 for shorter keys, faster performance, and compliance with China's cryptographic standards. PQC (post-quantum cryptography) support is coming for the future. Choose what fits your recipient and your preference.Not “what you have to use,” but “what you choose to use.”
RSA
for global reach
SM2
for modern performance
PQC
for tomorrow
Use Cases
Personal Privacy
Protect personal emails, financial information, and confidential data from theft and leakage.
Business Communication
Secure communication with clients and partners. Digital signatures ensure sender identity. AI polish makes emails more professional.
Regulatory Compliance
Meet international compliance requirements — GDPR, HIPAA, ISO 27001, and other data protection regulations.
High Security Needs
T2 / T3 / T4 Trusted Identity for finance, healthcare, government, and other high-security scenarios.
Enterprise Solutions
ZoTrus Email Encryption Gateway
Users continue using their familiar email clients by simply changing the IMAP/SMTP server addresses to the gateway address to automatically enable email encryption and decryption.
ZoTrus Enterprise Key Management System (KMS)
On-premise deployment, centralized management of employee encryption keys, supporting both RSA and SM2 algorithms
User Reviews
“ZTmail truly solves the 'last mile' problem of email encryption, allowing regular users to easily use S/MIME encryption.”
—— Security Industry Media“Automated certificate configuration + open AI integration—this is the most innovative email client I have ever seen.”
—— Early Beta Tester
