Renamed Mailbox (MR) Renamed mailbox (MR) record. Specifies a domain mailbox name, which is the proper rename of an existing ...

Renamed Mailbox (MR)
Renamed mailbox (MR) record. Specifies a domain mailbox name, which is the proper rename of an existing specified mailbox (specified in an existing mailbox or an MB-type record in the zone). The main use for an MR record is as a forwarding entry for a user who has moved to a different mailbox. If used, MR records do not cause additional section processing. (RFC 1035)