MeSign 1.5.0 - App Store

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About MeSign

MeSign App is an encrypted email client that is free and easy-to-use. No need to register a new email account. Just download MeSign app and log in to your existing email account. In a few moments, your free email...

MeSign App is an encrypted email client that is free and easy-to-use. No need to register a new email account. Just download MeSign app and log in to your existing email account. In a few moments, your free email certificate will be automatically installed, and you can start sending encrypted and digitally signed emails as easily as regular cleartext emails. Your emails will be stored in ciphertext on your email server only. Your email privacy will be end-to-end encryption protected. Here are some cool features you will love: - Automated S/MIME encryption Real privacy of communication requires encryption of emails in transit and at rest. It is normally a hustle to apply, install and configure email certificates into your email client. We have achieved a completely automated S/MIME encryption without changing your email address. MeSign app automatically installs and configures S/MIME certificates issued by MeSign CA in a few minutes after logging in. Then, all your outgoing emails will be encrypted to ensure protection and confidentiality. - Automated email digital signature and timestamp The sender’s identity as well as the time of sending can be forged and manipulated. With MeSign app all emails are digitally signed and timestamped to ensure authenticity, original sent time and identify a fraud. - Easy key management The free cloud key management service enables you to automatically install your encrypting certificate whenever you install MeSign App from a new device to log in to your email. The expired email certificate will also be automatically renewed for free. - Automatic key exchange The free cloud public key exchange service enables you to send encrypted email to anyone without manually exchanging public keys in advance. - Full security scan MeSign app performs email attachments and hyperlinks security scanning and Spam identification of all incoming emails. - Email encryption is compatibility with Outlook, Thunderbird, iMail etc. MeSign use S/MIME standard for email encryption, compatible with other S/MIME supported email clients like Outlook, Thunderbird and Apple Mail, and can decrypt the encrypted email with each other. Download MeSign app now and discover these and more features. Let us protect our privacy and communicate securely.

Version History Fixed: * Other bug fixed Have feedback? Please click the "Feedback" button in the APP, thanks. 1.5.0 11/27/2025 Fixed: * Other bug fixes Have feedback? Please click the "Feedback" button in the App, thanks. 1.3.3 12/25/2023 New and improved: * Remove the permission to read the phone device ID * Optimize the storage read and write access permissions * Optimize the start page Fixed: * Other bug fixes Have feedback? Please click the "Feedback" button in the App, thanks. 1.3.2 05/19/2021 New and improved: * Optimize the compatibility of MeSign Enterprise Key Management System Fixed: * Fix the attachment display BUG * Other bugs fixed Need feedback? Please click the "Feedback" button in the App, thank you! 1.3.1 05/12/2021 New and improved: * Optimize the process of installing the certificate, more quickly now * The email certificate cannot be exported * Optimize the display of SM2 email certificate, display the Chinese Law Compliance * Update multi-language translation Fixed: * Fixed the SM2 certificate request process * Other bug fixed Have feedback? Please click the ""Feedback"" button in the APP, thanks. 1.3.0 02/02/2021 New and improved: * Enable and optimize the Contact synchronization function, and improve the display of validated contact information * As long as the TO, CC and Bcc are not empty, you can send emails, so that you can not disclose all recipients' email address when sending notifying emails * All signing certificates' private key cannot be exported, while the private key of encrypting certificates can be exported, which is convenient for users to export it to be used in other software. Fixed: * Fix the problem that face recognition cannot be used in Chinese user identity validation * Fix the problem of identifying whether the recipient is a group email under the Exchange protocol * Fix the problem that the search box position of iPhone11 and other models * Other bug fixes Need feedback? Please click the ""Feedback"" button in the APP, thank you. 1.2.3 11/03/2020 New and improved: * Remove the function of synchronizing contacts * Improve the security control of logging into the official website from APP * Optimize the function of attachment security scanning before sending emails Fixed: * Fix the problem that it will get stuck when entering the settings page * Fix the problem of scanning QR code to log into the official website * Other bug fixes Need feedback? Please click the "Feedback" button in the APP, thank you 1.2.2 09/07/2020 New and improved: * Support device lock to unlock MeSign APP with fingerprint. * Optimize the deleting email accounts. * Add attachment security scan before sending email. * User can purchase the publicly trusted Vp Email Certificate. * Add contacts by scanning QR code. Fixed: * Fix the issue of retriving the public key when sending email. * Fix the issue of re-sending email after failed. * Fix the issue that login may fail using POP3 protocol. * Fix the issue of certificate display when the network is not available. * Other issues fixed. Have feedback? Please click the "Feedback" button in the APP, thanks. 1.2.1 08/29/2020 New and Improved: * Optimized iOS13 compatibility; * Support Microsoft Email OAuth login Fixed: * Other issues fixed. Have feedback? Please click the Feedback button in APP, thanks. 1.1.9 01/11/2020 New and Improved: * Optimized iOS13 compatibility; * Support Microsoft Email OAuth login Fixed: * Other issues fixed. Have feedback? Please click the Feedback button in APP, thanks. 1.1.8 12/13/2019 New and Improved: * Optimized iOS13 compatibility; * Support Microsoft Email OAuth login Fixed: * Other issues fixed. Have feedback? Please click the Feedback button in APP, thanks. 1.1.7 12/03/2019 New and Improved: * Optimized iOS13 compatibility; * Added a button to open website in the “ME” tab; * Exchange protocol supports domain account login; Fixed: * Fixed an issue with obtaining a certificate when sending an email; * Other issues fixed. Have feedback? Please click the Feedback button in APP, thanks. 1.1.6 11/14/2019 New and improved: * Optimized certificate application mechanism to ensure fast and automatic configuration of certificates. * OAuth 2.0 Support for Gmail login. Fixed: * Fixed the problem of mail decryption * Other issues fixed. Have feedback? Please click the Feedback button in APP, thanks. 1.1.5 10/01/2019 * Fixed other bugs. 1.1.4 04/24/2019 * Fixed identity authentication bug 1.1.2 04/20/2019 New and Improved: * Support Chinese Cryptographic Algorithm SM2 and SM2 certificate; * Added email read receipt; * Modified the process of Organization Validation and employee V3 Identity Certificate auto-issuance; * Improved the process of certificate application; * All remote content is disabled by default when viewing email details; * Improved the performance of certificate verification; * Added a review of the legal terms in the "ME" tab. Fixed: * An issue when login failed the password error form repeat pop-up; * Virus attachments do not display; * The problem of saving drafts and opening drafts without content using POP3 * Other bugs. Have feedback? Please click the Feedback button in APP, thanks. 1.1.1 04/15/2019 New and Improved: * Improved the certificate application automation, get the default certificate instantly; * Added face identification for China users for Individual Validation; * Moved “Scan QR code” button to the right of the top line in Me page; * Move the Identity Validation Application to MeSince website； * Send an encrypted and signed test email after the certificates installed; * Added system message notification channel; * Support multi-keyword search. Fixed: * Some email decode problem; * Other bugs. Have feedback? Please click the Feedback button in APP, thanks. 1.1.0 02/16/2019 New and Improved: * Improved the certificate application automation, get the default certificate instantly; * Added face identification for China users for Individual Validation; * Moved “Scan QR code” button to the right of the top line in Me page; * Move the Identity Validation Application to MeSince website； * Send an encrypted and signed test email after the certificates installed; * Added system message notification channel; * Support multi-keyword search. Fixed: * Some email decode problem; * Other bugs. Have feedback? Please click the Feedback button in APP, thanks. 1.0.9 01/30/2019 1.Terms of Service and Privacy Policy have been updated, please read. 2.Add charged authentication service 3.Fixed some bugs 1.0.8 12/17/2018 1.Terms of Service and Privacy Policy have been updated, please read. 2.Add charged authentication service 3.Fixed some bugs 1.0.7 12/16/2018 1.Terms of Service and Privacy Policy have been updated, please read. 2.Add charged authentication service 3.Fixed some bugs 1.0.6 12/16/2018 1.Enhenced the Key Management security control, so PLEASE update this version, otherwise you CAN NOT get the encrypting certificate; 2.Fixed some bugs. 1.0.5 11/13/2018 Fix some bugs 1.0.01 10/18/2018 Fix some bugs 1.0.00 10/14/2018 Optimized Permission control Optimized Multi-language support Optimized MX record checking Optimized controls on external links Fixed some bugs 0.9.99 08/30/2018

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Previous Versions

Here you can find the changelog of MeSign since it was posted on our website on 2023-08-02 06:12:53. The latest version is 1.5.0 and it was updated on 2026-06-27 08:39:38. See below the changes in each version.

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