before using this guide, please confirm that you have successfully applied for the Wosign digital certificate, if you do not have a certificate, please visit: https://buy.wosign.com/ Request a wosign client certificate.
1. Install client mail certificate;
A. First Configure a good MAC mail client, can send and receive mail;
B. after applying for the Wosign certificate, double-click Open pfx file
c. When you double-click Open, Prompt to enter the password;
d. After successful installation, the following digital certificate information will appear in keychain access of MAC ;
2. use mail clients to send signatures and encrypt messages;
A. Open your MAC 's mail client and create a new email;
B. Enter the recipient's email address, subject, and the Encrypt and sign button appears at the back end of the message.
3. receive signed and encrypted messages;
How to send and receive signed encrypted messages from your Mac computer's mail software