ZTmail offers three product editions to meet diverse user needs
I. Pricing Overview
Comparison Item
Free Edition Experience Auto Encryption
Free Forever
Trusted Identity Edition Show your trusted identity
US$7.98~15.98
Global Eco Edition Trusted by default in all email clients
US$13.98~48.98
Identity Display
(Email only)
Global Interoperability
RSA Interoperability
RSA Interoperability
Global Trusted Interoperability
Seamless Outlook Experience
Auto-decrypt RSA encrypted emails
Auto-decrypt RSA encrypted emails
Auto-decrypt RSA encrypted emails with trusted status
SM2 Compliance
Supports SM2 Algorithms
Fully Compliant (IV/OV/SV)
Fully Compliant (IV/OV/SV)
💡 In Short: Start with the Free Edition to experience encryption; use the Trusted Identity Edition to display your identity to recipients; choose the Global Eco Edition so Outlook etc. email client users see no signature warnings.
II. Free Edition
Feature
Description
Identity Display
T1 (Validated Email Address)
Encryption Capability
Automatic End-to-End Encryption (RSA or SM2)
Digital Signature
Automatic Digital Signature
AI Assistant
Self-configured AI Integration (Bring Your Own API Key)
Multi-Account Management
Supported
Cross-Platform
Windows / macOS / Linux
III. Trusted Identity Edition — Three Sub-products
The Trusted Identity Edition is divided into three sub-products based on identity validation levels. The higher the level, the higher the credibility displayed to the recipient.
Sub-product
Identity Level
Validation Content
Recipient Sees
Summary
Price
Individual Identity Edition
T2 (IV)
Personal Real Identity Validation
Sender's Real Name
I am this person
US$ 7.98/ year
Organization Identity Edition
T3 (OV)
Organization Identity Validation
Sender's Organization Name
I am an employee of this organization
US$ 13.98/ year
Organization Employee Identity Edition
T4 (SV)
Dual Validation (Organization + Employee)
Organization Name + Employee Name
I am [Name] from this organization
US$ 15.98/ year
💡 What you purchase is the "Identity Display Qualification," not just a digital certificate. The system displays your trusted identity to recipients via automated, tamper-proof digital signatures.
IV. Global Eco Edition — Two Product Lines
The Global Eco Edition solves the signature warning issue when recipients use third-party email clients like Outlook or Thunderbird. Two product lines are available:
Product Line 1: Value Edition (Recommended, High Cost-Performance)
Combines a Global MV Certificate with a ZoTrus Identity Certificate to achieve both "Global Interoperability" and "Trusted Identity Display" at the lowest cost.
Product Name
Identity Level
Included Features
Price
Value · Basic Edition
T1 (Mailbox Validated)
Publicly trusted S/MIME MV Certificate
US$ 13.98/ year
Value · Individual Edition
T2 (Individual Validated)
Publicly trusted S/MIME MV Certificate + ZoTrus IV Certificate
US$ 18.98/ year
Value · Organization Edition
T3 (Organization Validated)
Publicly trusted S/MIME MV Certificate + ZoTrus OV Certificate
Uses high-level certificates issued entirely by international CAs, with identity validation performed directly by the international CA.
Product Name
Identity Level
Included Features
Price
International · Basic Edition
T1 (Mailbox Validated)
Publicly trusted S/MIME MV Certificate
US$ 13.98/ year
International · Individual Edition
T2 (Individual Validated)
Publicly trusted S/MIME IV Certificate
US$ 28.98/ year
International · Organization Edition
T3 (Organization Validated)
Publicly trusted S/MIME OV Certificate
US$ 38.98/ year
International · Sponsor Edition
T4 (Sponsor Validated)
Publicly trusted S/MIME SV Certificate
US$ 48.98/ year
How to Choose?
Your Requirements
Recommended Choice
Only need global interoperability, no identity display needed
Basic Edition (US$ 13.98/ year)
Want "Global Interoperability + Identity Display" at the lowest cost
Value Edition (US$ 18.98/ year ~ US$ 28.98/ year)
Prefer identity validation directly from an international CA (slightly higher cost)
International Edition (US$ 28.98/ year ~ US$ 48.98/ year)
V. Edition Comparison
Comparison Item
Free Edition
Trusted Identity Edition
Global Eco Edition
Identity Display
T1 (Email Only)
T2 / T3 / T4
T1 / T2 / T3 / T4
Global Interoperability
RSA Interoperability
RSA Interoperability
Global Trusted Interoperability
Seamless Outlook Experience
Auto-decrypt RSA encrypted emails
Auto-decrypt RSA encrypted emails
Auto-decrypt RSA encrypted emails without signature warnings
SM2 Compliance
Supports SM2 Algorithms
Fully Compliant (IV/OV/SV)
Fully Compliant (IV/OV/SV)
Price
Free Forever
US$7.98~15.98
US$13.98~48.98
VI. Enterprise Bulk Purchasing
For 50+ email accounts, please contact sales for an exclusive quote
Includes enterprise centralized management console, audit logs, and dedicated deployment support
Supports integration with ZoTrus Email Encryption Gateway and Enterprise Key Management (KM) System
VII. Refund Policy
Paid services for ZTmail come with a 7-day money-back guarantee. You can request a hassle-free refund on the official website's application page within 7 days of purchase. Upon refund, the email certificate corresponding to the purchased service will be revoked immediately and cannot be restored. Free email certificates will not be affected, though users may need to manually set their default encrypting certificate if the current default happens to be the revoked paid certificate.
⚠️ Important Notice:
Once the certificate is revoked, all signed and encrypted emails previously sent using this certificate will display a "Certificate Revoked" or "Invalid Signature" prompt to recipients verifying the digital signature. The digital signatures on these emails will become permanently invalid.
Recommendation: Please try the free version to experience the core features before upgrading to a paid plan.
Refund Process:
Submit a refund request in the User Center of your ZoTrus account
The system revokes the certificate (irreversible)
The refund is processed via the original payment method