After installing Letsencrypt SSL according to https://wiki.zimbra.com/wiki/Installing_a_LetsEncrypt_SSL_Certificate article you need to renew certificate later. To renew certificate you can do following: Login to server as root

Change directory to Zimbra Letsecnrpyt SSL folder

Copy new SSL files to Zimbra Letsencrypt folder then change owner to Zimbra.

Add X3 root certificate to our […]