1. Install the client mail certificate;
A. Mail customers who have configured the MAC first can send and receive mail normally;
B. After applying for Wotong's certificate, double-click to open the pfx file.
C. After double-clicking to open, prompt for password;
D after successful installation, the following digital certificate information will appear in the keychain access of the MAC;
2. Use the mail client to send signed and encrypted mail;
A. open the mail client of MAC and create a new mail;
B. Enter the e-mail address and subject of the recipient, and the encryption and signature buttons will appear at the back end of the e-mail.
3. Receive signed and encrypted emails;
Matters needing attention
Apply for digital certificate in advance