- Microsoft Outlook For Mac Versions
- Microsoft Outlook For Mac Download
- Microsoft Outlook Mac Outdated Free
- Microsoft Outlook Mac Update
Symptoms
In Microsoft Outlook 2016 for Mac, you are repeatedly prompted for authentication while you're connected to your Office 365 account.
Microsoft Outlook For Mac Versions
If the Microsoft Office folder is not in Applications, Microsoft AutoUpdate does not detect Microsoft Office on the Mac, and it cannot install updates. To verify that the Microsoft Office folder is in the correct location, follow these steps: On the Go menu, click Applications. Look for the Microsoft Office 2008 or Microsoft Office 2011 folder. Nov 05, 2019 Microsoft Outlook for Mac Redesign Bringing New Features and Performance Improvements. Tuesday November 5, 2019 12:58 AM PST by Tim Hardwick. Outlook for Mac isn’t even that old, but it has. The Outlook for Mac experience, now available for preview in Insider Fast, has been updated to enhance performance and elevate productivity. The new Outlook for Mac is powered by the Microsoft Cloud and connects using Microsoft sync technology. It brings updates across Mail, Search, and Calendar exp.
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.
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.
Note
When you start Outlook, you are prompted to authenticate.
Note
Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise. For more information about this change, read this blog post.
Summary
To provide the best-in-class encryption to our customers, Microsoft plans to deprecate Transport Layer Security (TLS) versions 1.0 and 1.1 in Office 365 and Office 365 GCC as of June 2020.
We understand that the security of your data is important, and we're committed to transparency about changes that may affect your use of the TLS service.
The Microsoft TLS 1.0 implementation has no known security vulnerabilities. Microsoft for mac office versions comparison chart. But because of the potential for future protocol downgrade attacks and other TLS vulnerabilities, we are discontinuing support for TLS 1.0 and 1.1 in Microsoft Office 365 and Office 365 GCC.
For information about how to remove TLS 1.0 and 1.1 dependencies, see the whitepaper Solving the TLS 1.0 problem.
More information
As of June 2020, Office 365 will begin deprecating TLS 1.0 and 1.1 in worldwide environments for commercial customers and in GCC environments for GCC customers. This means that starting in June 2020, any commercial and GCC clients, devices or services that connect to Office 365 by using TLS 1.0 and 1.1 will not succeed.
Please note that TLS 1.0 and 1.1 is already unsupported, but the actual deprecation when Office 365 will stop accepting any connections using TLS 1.0 and 1.1 is scheduled to start in June 2020.
We recommend that all client-server and browser-server combinations use TLS 1.2 (or a later version) to maintain connection to Office 365 services. You might have to update certain client-server and browser-server combinations.
The following clients are known to be unable to use TLS 1.2. Update these clients to ensure uninterrupted access to the service.
- Android 4.3 and earlier versions
- Firefox version 5.0 and earlier versions
- Internet Explorer 8-10 on Windows 7 and earlier versions
- Internet Explorer 10 on Windows Phone 8
- Safari 6.0.4/OS X10.8.4 and earlier versions
TLS 1.2 for Microsoft Teams Rooms and Surface Hub
Microsoft Teams Rooms (previously known as Skype Room System V2 SRS V2) have supported TLS 1.2 since December 2018. We recommend that Rooms devices have Microsoft Teams Rooms app version 4.0.64.0 or later installed. For more information, see the Release notes. The changes are backward and forward compatible.
Surface Hub released TLS 1.2 support in May 2019.
TLS 1.2 support for Microsoft Teams Rooms and Surface Hub products also requires the following server-side code changes:
Microsoft Outlook For Mac Download
Skype for Business Online server changes were made live in April 2019. Now, Skype for Business Online supports connecting Microsoft Teams Rooms and Surface Hub devices by using TLS 1.2.
Skype for Business Server customers must install a cumulative update (CU) to use TLS 1.2 for Teams Rooms Systems and Surface Hub.
- For Skype for Business Server 2015, CU9 is already released in May 2019.
- For Skype for Business Server 2019, CU1 was previously planned for April 2019 but is delayed to June 2019.
Note
Skype for Business on-premises customers should not disable TLS 1.0/1.1 before installing specific CUs for Skype for Business Server.
If you are using any on-premises infrastructure for hybrid scenarios or Active Directory Federation Services, make sure that the infrastructure can support both inbound and outbound connections that use TLS 1.2.
References
Microsoft Outlook Mac Outdated Free
The following resources provide guidance to help make sure that your clients are using TLS 1.2 or a later version and to disable TLS 1.0 and 1.1.
Microsoft Outlook Mac Update
- For Windows 7 clients that connect to Office 365, make sure that TLS 1.2 is the default secure protocol in WinHTTP in Windows. For more information see KB 3140245 - Update to enable TLS 1.1 and TLS 1.2 as a default secure protocols in WinHTTP in Windows.
- To start addressing weak TLS use by removing TLS 1.0 and 1.1 dependencies, see TLS 1.2 support at Microsoft.
- New IIS functionality makes it easier to find clients on Windows Server 2012 R2 and Windows Server 2016 that connect to the service by using weak security protocols.
- Get more information about how to solve the TLS 1.0 problem.
- For general information about our approach to security, go to the Office 365 Trust Center.