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Email Encryption and Signature Services FAQs

  • 1. What is email signature service pro? Why is email trusted as important as email encryption?


    Email signature service pro is to provide the service by using the digital certificate containing the trusted identity information to digitally sign the email. It is a paid service. For example, banks send trusted digitally signed emails to bank users can make the receivers ensured the sender's authentic identity, effectively prevent email fraud, enhance online trust, and promote more business cooperation.

    Email trusted is as important as email encryption, because email encryption can only guarantee the email content will not be stolen illegally and the protect the confidential information of the email. If there is a fraudulent email sent from a fake bank, it will be more terrible if the email was encrypted, because it becomes much easier for users to be deceived. If you want your email to be trusted, you should sign the email with a signing certificate trusted by the email client, then the receiver can be sure of the sender's identity information is authentic.

    Therefore, although email encryption is important, the email trusted is more important than email encryption in some case, or at least they are as important as to each other.

  • 2. What is MeSign Trusted Identity Validation Service? Why do I have to complete the Identity Validation when purchasing the Email Signature Service Pro?


    MeSign Trusted Identity Validation Service is a free service for Professional Edition users. It is a professional identity validation service compliant with international standards provides users who purchase the Email Signature Service Pro, Document D-signature Service and Contract E-signature Service. All users who need to purchase one of the above three services need to provide identity proof documents to complete the Identity Validation.

    The reason why email can be trusted is that the email has been digitally signed by a signing certificate which contains trusted identity information. In order to make the identity be trusted, the identity must be validated by a trusted third-party. Therefore, purchasing email signature service pro must complete the Identity Validation. Once the identity is validated, MeSign APP will auto-configure the email signing certificate which contains the corresponding validation level of the trusted identity information.

  • 3. What are the differences between the free email signature service and charged email signature service pro?


    After installing MeSign APP and setting up the mailbox in MeSign APP successfully, a free V1 signing certificate will be configured by MeSign APP automatically, and the user can start to use this signing certificate to send signed emails for free email signature service. This V1 signing certificate only binds the user’s email address, and there is no trusted identity information on it.

    However, the email signature service pro provides user to use the signing certificate (V2/V3/V4 signing certificates) which contains the sender’s validated identity information to send signed emails. Once the receivers receive the signed email, MeSign APP will display senders’ identity information according to the information on the signing certificate.

    As the picture shown on the following figure 1, when the receiver received the email signed by a free V1 signing certificate, MeSign APP will display ‘V1 Email Validated, Identity Not Validated’. As the picture shown on the figure 2, when the receiver received the email signed by a V2 signing certificate, MeSign APP will display ‘V2 full name, Identity Validated’. As the picture shown on the figure 3, when the receiver received the email signed by a V3 signing certificate, MeSign APP will display ‘V3 Organization Name, Identity Validated and Trusted’. As the picture shown on the figure 4, when the receiver received the email signed by a V4 signing certificate, MeSign APP will display ‘V4 Full name, Organization Name, Title, Identity Validated and Trusted’.

    Figure 1

    Figure 2

    Figure 3

    Figure 4
  • 4. My company has purchased the Email signature service pro, will all the employees in my company be auto-configured a V3 email signing certificate for free?


    Yes, all employees will be auto-configured a V3 signing certificate for free and there is no limit on the number of the employees. Furthermore, all employees can use this email signature service pro for free. For example, if a company has 100 employees, and the email signature service pro annually fee is US$129, it is equivalent the company only need to pay US$1.29 for each employee to have a V3 signing certificate and to use the email signature service pro for 365 days. This service is absolutely well worth your money.

  • 5. The free auto-configured V3 signing certificate doesn’t show the employee’s name, if we want to show the employee’s name on the email, how can we do?


    Once the company purchased the email signature service pro, MeSign APP will auto-configure a free V3 signing certificate for every employee in this company. The V3 signing certificate only displays the organization name, and it doesn’t show the employee’s name. It is because MeSign only validated the organization’s identity, not the employees’ identity. If the company want to display the employee’s name and job title, then they need to purchase employee validation service. Once the employee passed the validation, MeSign APP will auto-configure the V4 signing certificate for the employee. Then when the receivers receive the email signed by the employee, the employee’s name and job title will be shown.

    Please note: The employee validation is charged for only one time. After passing the Validation, the employee identity is valid as long as the organization Validation is valid. When the organization Validation has expired, the organization just need to purchase the email signature service pro. The employees do not need to pay the validation fee again to get the V4 signing certificate.

  • 6. Why should emails sent by all important systems, such as banking system, e-government system, etc. should have trusted digital signatures?


    The current rampant flood of fraudulent emails is often sent by the counterfeit banks which notify to update the user’s bank account or sent by the counterfeit government agencies which notify the law enforcement or other important information. In order to prevent and eliminate such email identity counterfeiting, the banking system and e-government system must send a digitally signed email to users using email signing certificate containing the sender's identity information, which can not only effectively prevent the email from being tampered with illegally, but also can effectively prevent the important email from being counterfeited, thereby ensuring the security of the user's bank account and preventing the user from being deceived.

  • 7. I have purchased Email signature service pro and have been auto-configured a trusted signing certificate, why do I send a signed email to others indicating ‘Digital Signature is Invalid’? How to do?


    These receivers are the users haven’t used MeSign APP, because if the receivers are MeSign APP users the email will show your validated identity information correctly. If these receivers use other email client software, then it will have this warning, because the email client cannot recognize or do not trust the signing certificates.

    If you want your signed email sent to non-MeSign users by MeSign APP do not have this warning, you need to purchase Global Trusted Vp Email Certificate. After you purchased it, MeSign APP will auto-configure this Vp Certificate and set this certificate as the default signing certificate, then the signed email will be displayed as ‘This digital signature is trusted’ in other email client.

    That is to say, the email signature service pro is trusted by MeSign APP and can display the trusted identity information of senders, but there are many email client software in the current market and they have the right to trust the MeSign issued signing certificate or not. If user want the signed email sent by MeSign APP can be trusted by most of the email clients, then you can purchase the publicly trusted Vp Email Certificate issued by one of MeSign’s partners, publicly trusted CA – Sectigo, Vp Email Certificate is trusted by most of the email clients.

    Users can purchase MeSign Trusted Signing Service for signing certificate for free without employee limit, only charge an annual service fee - US$129.00, or purchase Global Trusted Vp Email Certificate on an as-needed basis, the Vp Email Certificate is US$14.99 per email per year, it is charged according to the number of email address.