2.2.1 DRS_MSG

The data carried by the MAIL_REP_MSG_V1 or MAIL_REP_MSG_V2 message MUST be a Network Data Representation (NDR)–encoded binary large object (BLOB) that contains one of the following DRS Remote Protocol structures, as specified in [MS-DRSR]:

  • DRS_MSG_GETCHGREQ_V4

  • DRS_MSG_GETCHGREQ_V7

  • DRS_MSG_GETCHGREPLY_V1

  • DRS_MSG_GETCHGREPLY_V6

The dwMsgVersion field of the MAIL_REP_MSG_V1 or MAIL_REP_MSG_V2 message identifies whether the payload is a DRS request message or a DRS response message and indicates the version of the DRS request or response.

Other DRS message structures MUST NOT be carried as payload of the DRS Protocol Extensions for SMTP.