1.5 Prerequisites/Preconditions

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This specification assumes one of the following:

  • That the messaging client has been referred to an address book server either by using the NSPI Referral protocol, as specified in [MS-OXABREF], or by using the Messaging Application Programming Interface (MAPI) Extensions for HTTP, as specified in [MS-OXCMAPIHTTP], and has established a connection to an address book server, as specified in [MS-NSPI], [MS-OXNSPI], and [MS-OXCMAPIHTTP]. 

  • That the messaging client has access to an OAB, as specified in [MS-OXOAB].