I already have asked a part of the question in another thread but I don’t want to hijack that thread furthermore, so sorry about that and here comes the questions/setup I want to make. If I understood correct now I can have a running ISPConfig setup on a single Server and have a second (not yet existing) MX join this setup following the multiserver setup Page 3 and Page 4 On the existing ISPConfig with a mailserver (and other services) I will have to follow starting with 4.3 Setting up replication for Dovecot and for the new mailserver I will just follow the full setup from Page 4. Is there anything that is different for Debian 11 compared to Debian 10 for this setup or should there be no problems at all?
