Posts Tagged ‘Free Busy’

A company who had recently upgraded its Client PC’s to Outlook 2016 from Outlook 2010 and were using Exchange 2016 were starting to get

Out Of Office not working and also Free and Busy

After the removal of Microsoft Exchange Web Services Managed API 2.2  on Exchange 2016 server the problem with Out of Office was fixed an the EventID 5011 warnings in the eventvwr are gone

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This is due to the computer looking up the client access server via the proxy server which returns a 404 page.Disabling the proxy tick box in Internet Explorer and restaring outlook fixes this , however if you have a group policy forcing this next restart will will not work.

Out of Office / Automatic Replies in Outlook 2010 will also now work

You will need to add the Client Access server to the proxy exclusion list in IE

You can test this by going the the registry here :

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]

“ProxyOverride”=”clientaccesserver.domain.local;”

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