Easy to use backup sollution for a remote headless server

Hello!

I am in need of an easy to use backup sollution for a debian server that is beeing managed by ISPConfig hosting websites and e-mail.

The goal would be to be able to spin it up on any other debian system if the original fails in a minimum of time.

Thus I would need to save all databases, files, websites, e-mails and config files that are related to ISPconfig, exim, appache2, mysql, dovecot, postfix, ....