==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 1.5.1 MARIADB edition.
- Deployed with iRedMail Easy or the downloadable installer? yes
- Linux/BSD distribution name and version: CENTOS STREAM 8
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? No
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.

This is a information request for auto renewal for letsencrypt certificates

Current situation:

/etc/pki/tls/private/iRedMail.key -> /etc/letsencrypt/live/mydomain.com/privkey.pem
/etc/pki/tls/certs/iRedMail.crt -> /etc/letsencrypt/live/mydomain.com/fullchain.pem

Old letsencrypt method: certbot certonly --dns-cloudflare --dns-cloudflare-credentials ~/.secrets/certbot/cloudflare.ini   
New letsencrypy method: acme.sh (source: github.com/acmesh-official/acme.sh)

The new method creates letsencrypt certificates and stores these in /root/.acme.sh/mydomain.com

So far this all works but replacing the new certificates permanently within Iredmail is not clear yet. I linked the iRedMail.key & iRedMail.crt to the newly generated keys in /root/.acme.sh/mydomain.com, but I ran in certificate issues with the webserver (and maybe postfix, which I did not test)

Questions:

- How and what needs to be copied so the existing configuration remains unchanged
- How can I check that the correct certificate is in use
- Am I notified that the certificates are expiring in the future