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
Thanks for the tip. it did not give a positive effect but I found "myhostname =" in the main.cf file.
After the change everything works perfectly. I am rated 10/10 at mail-tester.com.