Outlook for iOS cannot log into Exchange 2013 !???

Pierre Landau 21 Reputation points
2020-09-21T19:45:42.54+00:00

Outlook for iOS worked perfectly on my iPhone with Exchange 2010. My provider (Rackspace) just upgraded to Exchange 2013, and I now get authentication errors that make Outlook for iOS unusable. Note: 1) Outlook 2019 on Windows 10 has NO problems with the credentials and works well 2) Native iOS Mail app has NO problems with the credentials and works well (though no integration with calendar, etc.) 3) Web mail has NO problems with the credentials and works (though it looks ridiculous on a phone screen) 4) there were absolutely NO authentication issues when I was using this app against Exchange 2010 5) the suggested way to get help for Outlook for iOS is to go the the Settings...Help inside the app, which assumes you've already succeeded in logging in. BTW this issue is with Outlook for iOS version 4.56.0 "Unable to log in. Please check your email address and password and try again"

Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Jade Liang-MSFT 9,976 Reputation points Microsoft Employee
    2020-09-22T07:37:35.143+00:00

    Hi @Pierre Landau ,
    As I know, Outlook for IOS actually could support Exchange 2013 account, but according to your description, your account could work normally on other client except the Outlook for IOS, so this issue may be related to the Outlook for IOS itself. As a workarouond, please try to remove your account and add it again, or you could directly uninstall and reinstall your APP to check if the issue has any difference.

    If the issue still exists, due to here we focus on general issues about Outlook Desktop Client and we may know little about Outlook for IOS, it's suggested to post a new thread in this forum:
    https://answers.microsoft.com/en-us/msoffice/forum/msoffice_outlook-mso_imobile?sort=LastReplyDate&dir=Desc&tab=All&status=all&mod=&modAge=&advFil=&postedAfter=&postedBefore=&threadType=All&isFilterExpanded=false&page=1

    The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us. Thanks for your understanding and hope your question will be resolved soon.

    If the response is helpful, please click "Accept Answer" and upvote it.
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