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Environment: Mac, Outlook 2016 ( 15.39 171010 ), Mac OS High Sierra 10.13.1, Office 365. Connectivity: Wi-Fi on client side with inline proxy, Status of connection on most days would be described as stressed ( Line utilization is very high in our org. ) Location South Africa. The error message 17895 appears when you try to send or receive email from Mac outlook. Outlook messenger is not only designed for the Microsoft it is also designed. Outlook for Mac support tools. 11/4/2019; 3 minutes to read; S; C; A; Applies to: Outlook for Mac for Office 365; In this article Summary. This article describes some useful tools for Microsoft Outlook for Mac. In addition, for you are using Outlook for Mac, we have a dedicated in-app support team for it, which is specializing in handling issues related to Outlook for Mac. Therefore, we recommend you redirect to it for further assistance. To contact it, just select Help Contact Support in Outlook client. Regards, Betty.
Microsoft Outlook, the leading desktop email client from Microsoft, is not only available for Windows, but for Mac OS X as well. The most recent version of MS Outlook along with Word, Excel, and PowerPoint are included in Office for Mac 2011. As in the earlier versions, Outlook 2011 is primarily used as an email.
Symptoms
In Microsoft Outlook 2016 for Mac, you are repeatedly prompted for authentication while you're connected to your Office 365 account.
Cause
This issue occurs because of the presence of duplicate tokens in the keychain.
Resolution
To resolve this issue in Outlook 2016 for Mac, install the February 2017 Outlook update (version 15.31.0) from the following Office website:
Workaround
To work around this issue, delete any cached passwords for your account, and also delete any modern authentication tokens from the keychain. To do this, follow these steps.
Note
These steps affect all Office applications that use modern authentication.
Outlook For Mac 2016 Error Code 17898 10
- Quit Outlook and all other Office applications.
- Start Keychain Access by using one of the following methods:
- Select the Finder application, click Utilities on the Go menu, and then double-click Keychain Access.
- In Spotlight Search, type Keychain Access, and then double-click Keychain Access in the search results.
- In the search field in Keychain Access, enter Exchange.
- In the search results, select each item to view the Account that's listed at the top, and then press Delete. Repeat this step to delete all items for your Exchange account.
- In the search field, enter adal.
- Select all items whose type is MicrosoftOffice15_2_Data:ADAL:<GUID>, and then press Delete.
- In the search field, enter office.
- Select the items that are named Microsoft Office Identities Cache 2 and Microsoft Office Identities Settings 2, and then press Delete.
- Quit Keychain Access.NoteWhen you start Outlook, you are prompted to authenticate.