告别手动运维：锐安信CLM重磅发布，开启SSL证书自动化运维新时代
锐成信息联合Sectigo共同举办了「CLM – SSL证书自动化运维解决方案发布会」，重磅发布了专为中大型企业与复杂网络环境设计的SSL证书自动化运维系统——锐安信CLM。
Read More
S/MIME end-to-end Authentication and Encryption
sslTrus Email (S/MIME) Security Certificate
An email security certificate provides email signing and encryption services using S/MIME technology, also known as an S/MIME email certificate. It provides the highest level of confidentiality and security for email communication between enterprises and individuals, preventing email phishing fraud and the leakage of core business information.
Confirmation of Email Ownership Control
Verification of the sender's true enterprise identity
S/MIME public-private key pair generation
sslTrus S/MIME Security Certificate
Provide digital signatures and end-to-end encryption based on the S/MIME protocol for individuals and enterprise employees to prevent email leakage.
Individual/Freelancer
Personal S/MIME Email Certificate
It is suitable for personal email accounts. Only the control rights of the email account need to be verified, and the issuance speed is extremely fast.
¥240Since /
- Verify the ownership of the email address
- Automated high-speed issuance within 5-10 minutes
- The certificate only shows the email address
- Support all mainstream email clients
- 7*24 Expert Service
- 30-day worry-free refund plan
The top choice for enterprise government affairs
Enterprise-level business communication
Enterprise S/MIME Email Certificate
This is applicable to enterprise email and requires in-depth verification of name, email address, domain name ownership and real enterprise information.
¥480Since /
- Verify email ownership, sender and company information
- The certificate shows the email address, sender and enterprise information
- Strict identity issuance within 3 to 7 working days
- Thoroughly prevent business fraud and counterfeiting in enterprises
- 7*24 Expert Service
- 30-day worry-free refund plan
How does an S/MIME email certificate work?
Digital signatures and high-strength key exchange create a resilient end-to-end security loop between sender and recipient.
Email digital signature
Email signature certificate, identity verification, anti-fraud, and non-repudiation guarantee validity. The system hashes and signs your private key with the email content. Once the recipient receives it, they can not only confirm the sender's true identity but also immediately alert for any changes to the content, ensuring the integrity of the email. Tamper-proof, phishing blocking, email security worry-free.
End-to-end email encryption
The asymmetric encryption principle is adopted, and the recipient's public key is used to encrypt the email and its attachments. Once an S/MIME encrypted email is sent, it exists in ciphertext on both the transmission network and the intermediate mail server, and can only be decrypted by the recipient's unique private key. Ensure end-to-end security of transmission and storage, and prevent tampering and leakage.
Email Security Core Advantages of sslTrus Email Security Certificate
Core Advantages of sslTrus Email Security Certificate
Based on a mature public key infrastructure (PKI), we comprehensively eliminate business fraud traps and safeguard the high-value communication pipeline of enterprises.
View version pricingEncrypted email content and attachments
Whether text or sensitive attachments, financial-grade encryption applies to everything—effectively preventing interception and sniffing on public networks.
Anti-hijacking, anti-phishing
Digital signatures affix an unforgeable official steel seal to emails, completely rendering phishing scams that imitate senior executives or forge remittance accounts ineffective.
Comply with multi-industry compliance requirements
Meeting the strict global data privacy regulations such as HIPAA and GDPR, it is an indispensable compliance component for medical, government and enterprise, and financial institutions.
Outstanding cost performance
Get the endorsement of an internationally recognized CA at an accessible price and secure every mailbox in your company with ease.
Extensive multi-platform seamless compatibility
Natively supports and fully works with Outlook, Apple Mail, Foxmail and major mobile enterprise email clients for seamless cross-device decryption.
Enhancing digital trust in the enterprise communication ecosystem
No longer let naked emails become a security weak point for enterprises. Completely reshape your interaction security barrier with customers with S/MIME technology.
End-to-end data encryption
Ensure that key information such as business contracts and financial statements always exists in the highest level of ciphertext throughout the long chain from the outbox to the inbox.
Enhance the sender's trust
The digital signature verified by CA enables the recipient to clearly view the certificate information with the company name, greatly enhancing the sense of trust in business communication.
Ensure high email reach rate
Emails with valid digital signatures will be marked as highly reputable by major anti-spam gateways, significantly improving the box entry rate and business delivery effect.
Eliminate client insecurity warnings
Say goodbye to the red alert blocking boxes that major mainstream email clients (such as Outlook) pop up for emails of unknown origin or tampered with.
Business Secrets and Privacy Protection
Gives every email non-repudiable legal effect, strongly protecting the privacy baseline in enterprise supply chains and legal communications.
Display digital signature medal
On the supported email interface, the sender area of the incoming message will light up a digital badge or a dedicated blue V mark symbolizing verified security and identity.
Frequently Asked Questions
What email security issues can S/MIME certificates solve?
Two core issues: Digital signatures enable recipients to confirm the sender's true identity and ensure that the email has not been tampered with, completely blocking phishing and counterfeiting. End-to-end encryption ensures that only the designated recipients can read the content, preventing the leakage of business secrets during transmission and storage.
What are the differences between the personal version and the enterprise version?
The personal version only verifies the ownership of the email and can be issued within a few minutes. The enterprise version also verifies the true identity of the enterprise. The enterprise name is displayed on the certificate, which is suitable for establishing a trustworthy image in external business exchanges and also facilitates the unified management of employee certificates by the enterprise.
Which email clients are supported?
It is seamlessly compatible with mainstream desktop and mobile email clients such as Outlook, Apple Mail, Foxmail, and Thunderbird, and can also be seamlessly integrated with enterprise email systems such as Exchange and Microsoft 365.
Do both the sender and the receiver need certificates to encrypt?
Encrypted emails need to be encrypted using the recipient's public key (certificate). Therefore, both parties must hold certificates to send encrypted emails to each other. It is recommended that enterprises deploy them simultaneously with important partners. If only the signature function is used, the other party does not need to hold a certificate.
What compliance requirements can be met?
The S/MIME encryption and signature mechanism meets the requirements of HIPAA, GDPR and other regulations for the protection of sensitive information transmission, and is a fundamental measure for the security governance and compliance audit of enterprise email data.
From Manual Certificate Operations to Automation
From SSL/TLS certificate discovery, enrollment and deployment to continuous monitoring, alerting and automatic renewal, sslTrus helps enterprises build a unified certificate automation platform—reducing the operational burden of growing certificate inventories and shorter validity periods.
- Overview
- Certificate Requests
- Certificate Deployment
- Discovery Agents
- Compliance & Alerts
- Settings
Global Overview
Total Certificates
12,458
Pending
34
Expiring in 30 Days
15
Expired
2
Automated Deployments · 30 Days
Expiration Risk · Next 6 Months
Overall Compliance Rate
96%
Certificates Meet the Latest Security Baseline
Device & Cloud Asset Mix
Alibaba Cloud (40%)
AWS (25%)
Azure (15%)
F5 (10%)
Cisco (10%)
Digital Certificate Security Products
Code Signing Certificates
Provides industry-standard tamper-proof authentication with a high level of trust for commercial software and e-commerce.
SSL/TLS Certificates
Trusted certificates secure applications, servers, gateways and websites with HTTPS.
Certificate as a Service (CaaS)
A lightweight, cloud-native subscription model that enables agile, automated deployment across public clouds and business nodes.
Remote Code Signing
Scale signing with cloud HSM protection while keeping private keys secure.
Managed PKI / Private CA
Deploy a highly available PKI for internal systems, users and connected devices.
Certificate Lifecycle Management (CLM)
Discover, monitor, deploy and renew certificates across your environment—automatically. Prevent outages caused by missed renewals.
Latest Insights and Best Practices
Explore sslTrus updates, security trends and in-depth technical guidance.
