Wednesday, February 24, 2016

Auto discover slowness Outlook 2016

Microsoft has a vague article about it: https://support.microsoft.com/en-us/kb/2212902

From the list of keys they have to our disposal following is to our experience:

·         ExcludeHttpsRootDomain – no affect
ExcludeHttpsAutoDiscoverDomain – no affect
·         ExcludeScpLookup
ExcludeLastKnownGoodURL

After I added ExcludeScpLookup and ExcludeLastKnownGoodURL auto discover started working fast. One of these two keys added to the registry with the value of 1 is the fix of the issue.

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