Secure Zimbra Server with Let's Encrypt SSL Certificate
- Step 1: Install certbot-auto tool. ...
- Step 2: Stop Zimbra Proxy Service. ...
- Step 3: Obtain Let's Encrypt SSL Certificate. ...
- Step 4: Secure Zimbra Mail Server with Let's Encrypt SSL Certificate. ...
- Step 5: Test Let's Encrypt SSL Certificate on Zimbra Mail Server.