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
Do you mean an alternative to Horde IMP webmail? Horde is what is (only) shipped as webmail with Plesk. However, there are at least 3 possibilities:
1) Install another webmail client via plesk Application Vault (Web applications), for example ilohamail Webmail program http://ilohamail.org/ or http://www.uebimiau.org/
2) create an alias record (CNAME) in the domain DNS settings redirecting to your webmail page IP
3) create a subdomain webmail.domain.com and put an index.html file with all the content