4.6.1 Initialization
When the mail client first initializes, it sends a RopSetSpooler ROP request ([MS-OXCROPS] section 2.2.7.4) to inform the server that the client wants to be responsible for routing e-mail messages to the messaging transport.
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When the mail client first initializes, it sends a RopSetSpooler ROP request ([MS-OXCROPS] section 2.2.7.4) to inform the server that the client wants to be responsible for routing e-mail messages to the messaging transport.