RPC Proxy Authentication Setting

This policy setting determines the RPC proxy authentication setting for Outlook Anywhere.

If you enable this policy setting, you can specify the proxy authentication setting that Outlook uses, and this overrides any proxy authentication setting specified in Autodiscover.

If you do not configure this policy setting Outlook uses the proxy server authentication specified in Autodiscover.

Authentication used to connect with the proxy server:

0. Basic
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\outlook\rpc
   Value Name	proxyauthenticationservice
   Value Type	REG_DWORD
   Value	1

1. NTLM
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\outlook\rpc
   Value Name	proxyauthenticationservice
   Value Type	REG_DWORD
   Value	2

2. Negotiate
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\outlook\rpc
   Value Name	proxyauthenticationservice
   Value Type	REG_DWORD
   Value	16

3. Certificate
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	software\policies\microsoft\office\16.0\outlook\rpc
   Value Name	proxyauthenticationservice
   Value Type	REG_DWORD
   Value	65536