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
Summing all up this means that your host is currently not sending spam, but is has done so in the past. There is nothing you can do on your host at this time. The only thing that you can actively change is the blacklist listings. See instructions of Verizon e.g. from the deferred message log entries of your previous post.