In H-Sphere 2.5.1 and up it is possible to allow third-level domain hosters to create e-mail resources under their service domains. I.e., users that host third-level domains user.domain.com under service DNS zone domain.com, will be able to create mailboxes like firstname.lastname@example.org from their user CP.
To allow third-level hosters to create mailboxes under a service domain:
- Choose Manage in the Plans menu and check the Third level domain (Mail Under Host Domain) option for a plan:
- Choose DNS Manager in the Settings menu and click the Off icon to enable the Allow creating emails under Service Zone option for a particular service domain:
Then, if you search by domain name in the Search menu, affected third-level domains will have the domain type Third level domain (Mail Under Host Domain).