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
I'm not sure what your issues are, because you don't specify, why you think, that your eMail - transportation needs modification. What sort of failures do you notice? To which eMail - hosting providers? It would help as well, if you add some log entries from your mail.log, to help you investigate possible issues and it might help as well, if you add your operating system, the choosen mail - server and your actual Plesk version.