Hello everyone,
I would like to know if there is a way to modify an existing domain in my mailcow server (which has nothing to do with the domain of the main server and the fqdn), it is a domain that includes mailboxes, it would be necessary to modify this domain from: mydomain.biz to mydomain.org following a change of extension.
What would be the best way to make this change, while avoiding the loss of data on existing accounts?