Set the time-out interval for Outlook people search

This policy setting controls the time-out interval of Outlook people search. Outlook returns as many people search results as possible before the time-out interval lapses. If the search results are incomplete, Outlook displays a message at the bottom of the results list.

If you enable this policy setting, you can specify the time-out interval in milliseconds.

If you disable or do not configure this policy setting, the time-out interval is 60,000 milliseconds (60 seconds).

in milliseconds

Registry Hive	HKEY_CURRENT_USER
Registry Path	software\policies\microsoft\office\15.0\common\im
Value Name	presencecontactfastsearchtimeout
Value Type	REG_DWORD
Default Value	60000
Min Value	3000
Max Value	100000000