May 20, 2019 When Microsoft Outlook 2016 for Mac connects to an Office 365 account, Autodiscover is redirected from HTTP to HTTPS, and you may receive a warning message that resembles the following: Outlook was redirected to the server Autodiscover-s.outlook.com to get new settings for your account user@domain.com. In Microsoft Outlook 2016 for Mac, you are repeatedly prompted for authentication while you're connected to your Office 365 account. This issue occurs because of the presence of duplicate tokens in the keychain. To resolve this issue in Outlook 2016 for Mac, install the February 2017 Outlook update (version 15.31.0) from the. You cannot connect to a server that is running Microsoft Exchange Server from a Microsoft Outlook 2016 for Mac or Outlook for Mac 2011 client after disabling Secure Sockets Layer (SSL) on the server. 2020-3-19  Tech support scams are an industry-wide issue where scammers trick you into paying for unnecessary technical support services. You can help protect yourself from scammers by verifying that the contact is a Microsoft Agent or Microsoft Employee and that the phone number is an official Microsoft global customer service number. So, I was having this BRUTALLY annoying issue on my macs (when I work from home, I work on my mac) where, every time I launched Outlook 2016, I would be prompted to login with my credentials. Just super annoying and unnecessary. Theres a ton of documentation on 'how to fix this' but a lot of it misses an important step (also, a facepalm step).

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Office 2016 for Mac is a version of Office that’s available as a one-time purchase from a retail store or through a volume licensing agreement. It will be supported with security updates and bug fixes, as needed, until October 13, 2020. The minimum supported macOS for Office 2016 for Mac is 10.10 (Yosemite).

Note

  • For security reason, Microsoft has deprecated the use of SHA-1. Learn more
  • For release notes for Office 2016 for Mac releases prior to September 2018, see Release notes for Office for Mac.
  • For release information for Office for Mac, which is the version that comes with Office 365 subscriptions, see the release notes and update history for Office for Mac.
  • Office 2019 for Mac is the most current version that’s available as a one-time purchase. For release information for Office 2019 for Mac, see the release notes and update history for Office for Mac.

Updates for Office 2016 for Mac are available from Microsoft AutoUpdate (MAU). To use Microsoft AutoUpdate, start an Office application, such as Word, and then choose Help > Check for Updates. If you're an admin and want to update the computers in your organization with your existing software deployment tools, you can download and deploy the update packages for each application.

Most current packages for Office 2016 for Mac

The following table lists the most current packages for Office 2016 for Mac and for the individual applications, such as Word and Excel. All packages are 64-bit only. The build date is listed in parentheses, in a YYMMDD format, after the version number. The install package is used if you don't have the application already installed, while the update package is used to update an existing installation.

March 10, 2020

Microsoft Outlook For Mac 2016 Keeps Resyncing Working

Version 16.16.20 (20030700)

ApplicationDownload linksSHA256 hashes for install package
Office suite (all applications)
Install package
E6B38E17FECF5BF67CB08C5EF405BCEFE2079A079637D5800E1815B1FCB8E0B6
Word
Install package
Update package
1B60C30C16005DE9D88C93DF5371BEC856944F98B8337D5408DC96C90A808E86
Excel
Install package
Update package
4634B23F41A57B02D27F71C37D87856786DEF3653A40FFFFCEDF43857E1D9754
PowerPoint
Install package
Update package
B062BAD7FEE443EDA0F5804F4F7C6D90585F62D91B74BD47F9D1EDE29C13DFA8
Outlook
Install package
Update package
07E736079C55DC0EB6C355FF45A51A2987D5623F8D1F8F485F378EE721937980
OneNote
Update package
Not applicable

March 2020 release

Release Date: March 10, 2020

Version 16.16.20 (Build 20030700)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
CVE-2020-0850
CVE-2020-0852
CVE-2020-0892
Word update package
Excel

Excel update package
PowerPoint
PowerPoint update package
Outlook

Outlook update package
OneNote
OneNote update package
Office suite

February 2020 release

Release Date: February 11, 2020

Version 16.16.19 (Build 20021000)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
CVE-2020-0759
Excel update package
PowerPoint
PowerPoint update package
Outlook

Outlook update package
OneNote
OneNote update package
Office suite

January 2020 release

Release Date: January 14, 2020

Version 16.16.18 (Build 20011202)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
CVE-2020-0650
CVE-2020-0651
Excel update package
PowerPoint
PowerPoint update package
Outlook

Outlook update package
OneNote
OneNote update package
Office suite

December 2019 release

Release Date: December 10, 2019

Version 16.16.17 (Build 19120800)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
CVE-2019-1464
Excel update package
PowerPoint
CVE-2019-1462PowerPoint update package
Outlook

Outlook update package
OneNote
OneNote update package
Office suite

November 2019 release

Release Date: November 12, 2019

Version 16.16.16 (Build 19111100)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
CVE-2019-1446
CVE-2019-1448
CVE-2019-1457
Excel update package
PowerPoint
PowerPoint update package
Outlook

Outlook update package
OneNote
OneNote update package
Office suite

October 2019 release

Release Date: October 15, 2019

Version 16.16.15 (Build 19101400)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
CVE-2019-1327
CVE-2019-1331
Excel update package
PowerPoint
PowerPoint update package
Outlook

Outlook update package
OneNote
OneNote update package
Office suite

September 2019 release

Release Date: September 10, 2019

Version 16.16.14 (Build 19090900)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
CVE-2019-1263
CVE-2019-1297
Excel update package
PowerPoint
PowerPoint update package
Outlook

Outlook update package
OneNote
OneNote update package
Office suite

August 2019 release

Release Date: August 13, 2019

Version 16.16.13 (Build 19081100)

This release provides the following updates.

Writing a research or term paper in APA format? This starter template provides easy access to styles that match APA guidelines. This is an accessible template. Microsoft office. 2016-7-22  Now I have Word 2016 for MAC and am completely lost as to how to format an APA style paper. None of the old steps (page number, header/footer, etc) seem to apply. Does anyone know of a good online tutorial for APA Word 2016 for MAC? Any format help. This tutorial will guide you through the process of setting up Microsoft Word 2016 for your MLA Format paper. It is very easy and we are going to accomplish the following settings: All text is font “Times New Roman” & Size 12. One-inch page margin for all sides (top, bottom, right and left).

Microsoft
ApplicationSecurity updatesDownload link for update package
Word
CVE-2019-1201
CVE-2019-1205
Word update package
Excel
Excel update package
PowerPoint
PowerPoint update package
Outlook

Outlook update package
OneNote
OneNote update package
Office suite

July 2019 release

Release Date: July 16, 2019

Version 16.16.12 (Build 19071500)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
CVE-2019-1110
CVE-2019-1111
Excel update package
PowerPoint
PowerPoint update package
Outlook
CVE-2019-1084
Outlook update package
OneNote
OneNote update package
Office suite

June 2019 release

Release Date: June 11, 2019

Version 16.16.11 (Build 19060902)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
CVE-2019-1034
CVE-2019-1035
Word update package
Excel

Excel update package
PowerPoint
PowerPoint update package
Outlook
Outlook update package
OneNote
OneNote update package
Office suite

May 2019 release

Release Date: May 14, 2019

Microsoft Outlook For Mac Free

Version 16.16.10 (Build 19051200)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
CVE-2019-0953
Word update package
Excel

Excel update package
PowerPoint
PowerPoint update package
Outlook
Outlook update package
OneNote
OneNote update package
Office suite

April 2019 release

Release Date: April 16, 2019

Outlook For Macintosh

Version 16.16.9 (Build 19041201)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word

Word update package
Excel
CVE-2019-0828
Excel update package
PowerPoint
PowerPoint update package
Outlook
Outlook update package
OneNote
OneNote update package
Office suite
CVE-2019-0822

March 2019 release

Release Date: March 12, 2019

Version 16.16.8 (Build 19031202)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word

Word update package
Excel

Excel update package
PowerPoint
PowerPoint update package
Outlook
Outlook update package
OneNote
OneNote update package
Office suite

February 2019 release

Release Date: February 12, 2019

Version 16.16.7 (Build 19021001)

Microsoft Outlook For Mac 2016 Keeps Resyncing

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word

Word update package
Excel
CVE-2019-0669
Excel update package
PowerPoint
PowerPoint update package
Outlook
Outlook update package
OneNote
OneNote update package
Office suite

January 2019 release

Release Date: January 16, 2019

Version 16.16.6 (Build 19011400)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
CVE-2019-0561: Microsoft Word Information Disclosure Vulnerability
CVE-2019-0585: Microsoft Word Remote Code Execution Vulnerability
Word update package
Excel
Excel update package
PowerPoint
PowerPoint update package
Outlook
Outlook update package
OneNote
OneNote update package
Office suite

December 2018 release

Release Date: December 11, 2018

Version 16.16.5 (Build 18120801)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
CVE-2018-8597: Microsoft Excel Remote Code Execution Vulnerability
CVE-2018-8627: Microsoft Excel Information Disclosure Vulnerability
Excel update package
PowerPoint
CVE-2018-8628: Microsoft PowerPoint Remote Code Execution Vulnerability
PowerPoint update package
Outlook
Outlook update package
OneNote
OneNote update package
Office suite

November 2018 release

Release Date: November 13, 2018

Version 16.16.4 (Build 18111001)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
CVE-2018-8574: Microsoft Excel Remote Code Execution Vulnerability
CVE-2018-8577: Microsoft Excel Remote Code Execution Vulnerability
Excel update package
PowerPoint
PowerPoint update package
Outlook
Outlook update package
OneNote
OneNote update package
Office suite

October 2018 release

Release Date: October 16, 2018

Version 16.16.3 (Build 18101500)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
Excel update package
PowerPoint
PowerPoint update package
Outlook
Outlook update package
OneNote
OneNote update package
Office suite
CVE-2018-8432 Microsoft Graphics Components Remote Code Execution Vulnerability

September 2018 release

Release Date: September 11, 2018

Version 16.16.2 (Build 18091001)

This release provides the following updates.

ApplicationSecurity updatesDownload link for update package
Word
Word update package
Excel
CVE-2018-8429: Microsoft Excel Information Disclosure Vulnerability
CVE-2018-8331: Microsoft Excel Remote Code Execution Vulnerability
Excel update package
PowerPoint
PowerPoint update package
Outlook
Outlook update package
OneNote
OneNote update package
Office suite
CVE-2018-8332: Microsoft Graphics Remote Code Execution Vulnerability
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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.

  1. Quit Outlook and all other Office applications.

  2. 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.
  3. In the search field in Keychain Access, enter Exchange.

  4. 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.

  5. In the search field, enter adal.

  6. Select all items whose type is MicrosoftOffice15_2_Data:ADAL:<GUID>, and then press Delete.

  7. In the search field, enter office.

  8. Select the items that are named Microsoft Office Identities Cache 2 and Microsoft Office Identities Settings 2, and then press Delete.

  9. Quit Keychain Access.

    Note

    When you start Outlook, you are prompted to authenticate.