These restrictions and limits apply to all sub-servers under the selected parent server. Limits on the number of mailboxes, aliases and databases include all servers, rather than being applied on a per-server basis. These limits do not apply to the master administrator or resellers, only to server owners and their extra administrator accounts.
If a server is owned by a reseller who has limits on domains, mailboxes or aliases, they will apply as well as the limits set on this page. The lower of each limit is the one that will take effect.