(2nd) Outlook 2016 continually prompts for login credentials issue

for Office 365

Information updated on 29/09/2017 at 14:10 (GMT+9)

User agent of Outlook 2016 has been partly changed, which may cause this issue to some customers.
For customers who encounter a problem of not being able to login to Outlook 2016. There is a possibility that the access is being denied by HENNGE Access Control Policy. Please confirm the current setting of Access Policy and modify as shown below.

Login to HENNGE Access Control Admin Console => Access Policy Group

[Condition to allow Desktop/Mobile application access]
Original value:
ip4: or uastr:"%Outlook%"

Edit to :
ip4: or uastr:"%Outlook%" or uastr:"%MAPI%"

If you have any question or concern, please contact directly to our Support Team for assistance.

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