M$ Exchange Internet MTA (eMail Server)

Configuring remote access from Outlook:

Configure an Exchange Server 2003 back-end server as an RPC proxy server:

• Start, Control Panel, Add/Remove Programs, Add/Remove Components, RPC over HTTP Proxy

Configure the RPC virtual directory for Basic authentication and SSL

• Start, Internet Information Service Manager, Default Website, right click the RPC Virtual Directory, Directory Security tab, uncheck Enable Anonymous Access, check Basic Authentication.
• Check Require SSL, check Require 128-bit encryption.

Configure the RPC proxy server to use specified ports for RPC over HTTP

• HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\RPC\RPCPROXY Port Range 6001-6002 for the NetBIOS and DNS FQDN and Port 6004 also for the NetBIOS and DNS FQDN

Set the NT Directory Services (NTDS) port on all global catalog servers that act as Exchange Server 2003 back-end servers

• HKEY_LOCAL_MACHINE\SYSTEM\CURRENTCONTROLSET\SERVICES\NTDS\PARAMETERS Create a REG_MULTI_SZ Record named NSPI interface protocol sequences with the data NCACN_HTTP:6004

See also:

• http://www.microsoft.com/technet/prodtechnol/exchange/2003/library/ex2k3rpc.mspx
• http://www.msexchange.org/ and specifically:
  • http://www.msexchange.org/tutorials/outlookrpchttp.html Configuring the Outlook 2003 RPC over HTTP Client
  • http://www.msexchange.org/tutorials/Outlook_2003_Connect_Exchange_2003.html Using Outlook 2003 to connect to Exchange 2003 using RPC over HTTPS
  • http://www.msexchange.org/tutorials/Troubleshooting-RPC-over-HTTPS-Part1.html Troubleshooting RPC over HTTPS (Part 1)
  • http://www.msexchange.org/tutorials/Troubleshooting-RPC-over-HTTPS-Part2.html Troubleshooting RPC over HTTPS (Part 2)