RP-Records (Responsible person)
An RP-record specifies the mailbox of the person responsible for a host (domain name).
A SOA-record defines the responsible person for an entire zone, but a zone may contain many individual hosts / domain names for which different people are responsible.
The RP-record type makes it possible to identify the responsible person for individual host names contained within the zone.
Optionally specify the domain name for a TXT-record with additional information (such as phone and address).
To create a new RP-record, right-click a zone in the left list in the DNS Records window, and select "Other new record" from the pop-up menu.
This record type is defined in RFC1183.