Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: infinexweb.com
I ran this command: /opt/zimbra/bin/zmcertmgr verifycrt comm privkey.pem cert.pem chain.pem
It produced this output: ** Verifying ‘cert.pem’ against ‘privkey.pem’
Certificate ‘cert.pem’ and private key ‘privkey.pem’ match.
** Verifying ‘cert.pem’ against ‘chain.pem’
ERROR: Unable to validate certificate chain: cert.pem: C = US, O = Let’s Encrypt, CN = Let’s Encrypt Authority X3
error 2 at 1 depth lookup:unable to get issuer certificate
My web server is (include version): This is a Zimbra mail server 8.7
The operating system my web server runs on is (include version): CentOS 7
My hosting provider, if applicable, is:
I can login to a root shell on my machine (yes or no, or I don’t know): Yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): I have access to my Zimbra admin panel