Outlook/Exchange Network Traffic
This is an excellent article:
Control Client Network Traffic
It contains an interesting discussion of the Exchange Provider binding order contained in
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ Exchange\Exchange Provider\ Rpc_Binding_OrderThe article defines them as follows:
| Network Protocols for MAPI Clients | |
| Registry protocol | Meaning |
| ncalrpc | Local RPC calls (client and server on the same system). |
| ncacn_ip_tpc | TCP/IP transmitted over Winsock. The client locates the server using DNS, a local hosts files, or a raw IP address, but not NetBIOS. |
| ncacn_spx | Novell SPX using the NetWare Bindery to locate the server. NetBIOS is not used. |
| ncacn_sp | Named pipes. The client locates the server using a NetBIOS computer name, WINS, or LMHOSTS. |
| netbios | The default NetBIOS protocol. |
| ncacn_vns_spp | Banyan VINES. |
And recommends removing the bindings that you do not use. e.g. vines, novell....
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