Outlook “Offline Address Book” ERROR 0x80190197

Hello

Im getting this on all users machiens today.  Weve been on o365 hybrid setup with exchange 2010 on-prem.

Thanks
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CHI-LTDAsked:
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CHI-LTDConnect With a Mentor Author Commented:
Not that i was aware of.  I have found that the outlook.office365.com was being filtered in some way so added to the exception list for proxy.
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Todd NelsonConnect With a Mentor Systems EngineerCommented:
Was anything changed recently with your on premises Exchange servers?

http://clintboessen.blogspot.com/2011/10/offline-address-book-0x80190197.html
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Edwin HofferConnect With a Mentor Technical ExpertCommented:
Hello User,

I have found a similar solved thread in exchange expert. Please have a look.

https://www.experts-exchange.com/questions/27678782/Error-while-send-and-receive-outlook-exchange-2010.html

Thanks & Regards
Edwin
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CHI-LTDAuthor Commented:
was being filtered..
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