The attempt to logon to microsoft exchange has failed

I’ve been travelling a lot for work-related this year, and also once I’m amethod from residence I mostly leave my house COMPUTER on.

You watching: The attempt to logon to microsoft exchange has failed

It was upon returning from a work trip that I uncovered Windows had actually pumelted an update to it, and also it had restarted – and also from that minute, Outlook was damaged.


ComputerHKEY_CURRENT_USERSoftwareMicrosoftOffice16.0OutlookAutoDiscoverName: ExcludeScpLookupType: REG_DWORDData: 1Add the key.Reboot.Rename the Outlook folder at c:users\AppDataLocalMicrosoftOutlook.Create a brand-new profile.BAM! We’re up.


If you’re method ahead of me here, you’ve already realised the issue is all because I have an on-premises Exreadjust deployment that *is* in hybrid mode through Office 365 – yet the SMTP account in question belongs to a cloud-just user.

If anything it’s a leskid to be cautious in just how you do your coexistence with Office 365. Whilst my scenario isn’t the right way to perform a migration, it might be somepoint you’ll enrespond to in an M&A (Mergers & Acquisitions) scenario, via a mix of on-prem and cloud customers.

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But sucount a message to say my user doesn’t exist in the local AD/Exadjust would have made more sense, and also been a tiny simpler to resolve?

And why did this start out of the blue? Did the surpclimb Windows or Office update that began this recollection a previous regisattempt setting??

I guess I’ll never recognize – however at least I have my beloved search syntaxes ago now.


Revision History

28th October 2019: This is the initial publication.29th October 2019: Added some sub-folders overlooked in the “Rename the Outlook folder” step.

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– G.


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