Feb 12, 2020. Click New mail (in Outlook) or New Email (in Outlook on the web). In the To box, start typing the recipient's name or email address until the recipient's name appears in the drop-down list. Use the Down Arrow and Up Arrow keys to select the recipient, and then press the Delete key to delete the Auto-Complete List entry.
In Outlook, click Help Check For Updates. If an update is found, download and install it. Restart Outlook. If the problem continues, click Help Contact Support. At the top of your Outlook 2010 ribbon, choose the File tab. If your ribbon doesn't have a File option in the top left corner, you're not using Outlook 2010. See What version of Outlook do I have? To get to the import instructions for your version of Outlook. A security upgrade is coming to AT&T email. If you use Outlook for email, you’ll have to update your email settings. Learn more about the security upgrade. Be sure to create a secure mail key to set up or update your AT&T email in Outlook 2016.
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Symptoms
Systems manuals boeing 717. 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
Your Email Program Is Using Outdated Address On Outlook 2016 For Mac Download
These steps affect all Office applications that use modern authentication.
Your Email Program Is Using Outdated Address On Outlook 2016 For Mac Pro
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.