Outlook for Mac 15.9 - Exchange Password Issue

Upgraded Outlook for Mac from 15.8 to 15.9 today. Opened the app after the update and it continued to prompt for my Exchange password.

Set up a new identity. Same issue.

Deleted all keys in Keychain Access. Same issue.

Deleted and reinstalled 15.9. Same issue.

Setup Exchange account via Mail. Works.

Deleted 15.9 and reinstalled 15.8. Works.

Somethings not right with the update. Any ideas?

Running Yosemite 10.10.3 (14D131)

 

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Last updated September 5, 2019 Views 3,161 Applies to:
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I am having the same issue.  I was able to resolve it by entering the full username and address in the format username@address and not just the username.  I had to check "Save in my Keychain" or it would ask each time I started Outlook 15.9.

Still getting a certificate error, however.

Yosemite 10.10.3

using username@domain did the trick for me!

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I finally solved the certificate error and issues with sync (or my exchange host did eventually after 15 odd phone calls). In the end the issue turned out to be the version of exchange running on the server not connecting with the new version of outlook (how MS manage to break their own software is beyond me) - it was 2010 but when upgraded to 2013 everything started to work perfectly again.

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