Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
If you are still using CentOS 7.9, it's time to convert to Alma 8 with the free centos2alma tool by Plesk or Plesk Migrator. Please let us know your experiences or concerns in this thread: CentOS2Alma discussion
Please check on the server in a SSH shell the DNS resolving for letsencrypt domain.
nslookup acme-v02.api.letsencrypt.org
Try to repair:
plesk repair dns
Ubuntu 18 is very old and does not get updates anymore.
https://ubuntu.com/blog/ubuntu-18-04-eol-for-devices
Any no other syslog messages related to dovecot?
1. Set a regular FQDN as hostname in Plesk;
means: If your main domain is thisisa.ork give the server the hostname f.ex. sv1.thisisa.ork
2. Set this FQDN in domain hoster's DNS settings reverse DNS if your server IP
3. Check settings in /etc/resolv.conf and /etc/hostname and /etc/hosts
If...
What gives a DNS check with the bad domain:
dig @8.8.8.8 sweet-hoover.MY-Plesk-IP.plesk.page +short
What gives a DNS check with IP:
dig @8.8.8.8 -x IPHERE +short
sweet-hoover.MY-Plesk-IP.plesk.page is not a valid hostname/FQDN for a server but a testing placeholder.
Check reverse DNS and IP for your domain at your domain hoster. DNS/IP updates can take some minutes up to many hours.