This article describes update KB3127912 for Microsoft Outlook 2016, which was released on November 1, 2016. This update has a prerequisite.

Be aware that the update on the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (How to determine?)

Improvements and fixes

  • Adds the ability to specify the Warn me before downloading content when editing, forwarding, or replying to e-mail option through a registry key. See KB3118321 for more information.

  • Fixes the following issues:

    • Assume that you create a contact on a mobile phone and synchronize it to Outlook 2016 that runs in cache mode. When you select the contact as a recipient and send an encrypted email message to the recipient, you receive the following error message:

      Outlook had problems encrypting this message because the following recipients had missing or invalid certificates.

    • After you add a secondary Office 365 account from a different domain to the same profile in Outlook 2016, you can't send encrypted email messages.

    • Outlook 2016 may crash when you run scripts to open folders that contain RSS feeds. 

    • The AutoDiscover task leaks files in the temp folder. When the temp directory is full, you can't open some email messages and AutoDiscover fails.

    • You can't synchronize data from shared mailboxes if public folders are inaccessible.

    • The getCallbackTokenAsync API fails for an add-in when it's called from a Module Extension Point.

    • When you press the Delete key two times for an attachment in Outlook 2016, Outlook 2016 may crash.

    • You can't forward a meeting from the calendar to another recipient.

    • Assume that you enable the Never send a read receipt option in Outlook 2016. When you empty unread items that has the Request a Read Receipt option enabled, the Not read message is still generated.

How to download and install the update

Microsoft Update

Use Microsoft Update to automatically download and install the update.

Download Center

This update is also available for manual download and installation from the Microsoft Download Center.

If you're not sure what platform (32-bit or 64-bit) you're running, see Am I running 32-bit or 64-bit Office? Additionally, see more information about how to download Microsoft support files.

Microsoft scanned this file for viruses by using the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to it.

Update information

PrerequisiteTo apply this update, you must have Microsoft Outlook 2016 installed.

Restart informationYou may have to restart the computer after you install this update.

More Information

To determine whether your Office installation is Click-to-Run or MSI-based, follow these steps:

  1. Start an Office 2016 application.

  2. On the File menu, select Account.

  3. For Office 2016 Click-to-Run installations, an Update Options item is displayed. For MSI-based installations, the Update Options item isn't displayed.

Office 2016 Click-to-Run installation

MSI-based Office 2016

The screenshot for Word click to run

The screenshot for Word MSI

Windows 10

  1. Go to Start, enter View Installed Updates in the Search Windows box, and then press Enter.

  2. In the list of updates, locate and select KB3127912, and then select Uninstall.

Windows 8 and Windows 8.1

  1. Swipe in from the right edge of the screen, and then select Search. If you're using a mouse, point to the lower-right corner of the screen, and then select Search.

  2. Enter windows update, select Windows Update, and then select Installed Updates.

  3. In the list of updates, locate and select KB3127912, and then select Uninstall.

Windows 7

  1. Go to Start, enter Run, and then select Run.

  2. Enter Appwiz.cpl, and then select OK.

  3. Select View installed updates.

  4. In the list of updates, locate and select KB3127912, and then select Uninstall.


References

Learn about the standard terminology that's used to describe Microsoft software updates. The Office System TechCenter contains the latest administrative updates and strategic deployment resources for all versions of Office.

File Information

The global version of this update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

outlook-x-none.msp file information

File identifier

File name

File version

File size

Date

Time

Contab32.dll

Contab32.dll

16.0.4456.1003

152,816

29-Oct-2016

04:02

Dlgsetp.dll

Dlgsetp.dll

16.0.4456.1003

109,800

29-Oct-2016

04:02

Envelope.dll

Envelope.dll

16.0.4456.1003

189,200

29-Oct-2016

04:02

Mapiph.dll

Mapiph.dll

16.0.4405.1000

332,608

28-Oct-2016

02:51

Mapir.dll_1033

Mapir.dll

16.0.4444.1000

1,280,736

28-Oct-2016

02:51

Mimedir.dll

Mimedir.dll

16.0.4456.1003

446,144

29-Oct-2016

04:02

Olmapi32.dll

Olmapi32.dll

16.0.4456.1003

4,773,632

29-Oct-2016

04:02

Omsmain.dll

Omsmain.dll

16.0.4441.1000

753,408

28-Oct-2016

02:51

Omsxp32.dll

Omsxp32.dll

16.0.4405.1000

261,416

28-Oct-2016

02:51

Outllibr.dll_1033

Outllibr.dll

16.0.4456.1003

7,491,816

29-Oct-2016

04:10

Outlmime.dll

Outlmime.dll

16.0.4456.1003

611,600

29-Oct-2016

04:02

Outlook.exe

Outlook.exe

16.0.4456.1003

23,130,312

29-Oct-2016

04:02

Outlook.hol_1033

Outlook.hol

Not applicable

1,334,168

28-Oct-2016

02:51

Outlph.dll

Outlph.dll

16.0.4375.1000

358,192

28-Oct-2016

02:51

Outlvba.dll

Outlvba.dll

16.0.4456.1003

76,536

29-Oct-2016

04:02

Pstprx32.dll

Pstprx32.dll

16.0.4456.1003

1,383,632

29-Oct-2016

04:02

Rm.dll

Rm.dll

16.0.4312.1000

81,584

28-Oct-2016

02:51

Scnpst32.dll

Scnpst32.dll

16.0.4456.1003

459,608

29-Oct-2016

04:02

Scnpst64.dll

Scnpst64.dll

16.0.4456.1003

471,392

29-Oct-2016

04:02

Scnpst64c.dll

Scnpst64c.dll

16.0.4456.1003

672,112

29-Oct-2016

04:02


outlook-x-none.msp file information

File identifier

File name

File version

File size

Date

Time

Contab32.dll

Contab32.dll

16.0.4456.1003

199,920

29-Oct-2016

04:04

Dlgsetp.dll

Dlgsetp.dll

16.0.4456.1003

138,472

29-Oct-2016

04:04

Envelope.dll

Envelope.dll

16.0.4456.1003

248,584

29-Oct-2016

04:04

Mapiph.dll

Mapiph.dll

16.0.4405.1000

481,088

28-Oct-2016

03:01

Mapir.dll_1033

Mapir.dll

16.0.4444.1000

1,280,736

28-Oct-2016

03:01

Mimedir.dll

Mimedir.dll

16.0.4456.1003

601,280

29-Oct-2016

04:04

Olappt.fae

Olappt.fae

16.0.4366.1000

134,480

28-Oct-2016

03:01

Olmapi32.dll

Olmapi32.dll

16.0.4456.1003

6,605,048

29-Oct-2016

04:04

Omsmain.dll

Omsmain.dll

16.0.4441.1000

1,004,288

28-Oct-2016

03:01

Omsxp32.dll

Omsxp32.dll

16.0.4405.1000

352,040

28-Oct-2016

03:01

Outllibr.dll_1033

Outllibr.dll

16.0.4456.1003

7,491,816

29-Oct-2016

04:13

Outlmime.dll

Outlmime.dll

16.0.4456.1003

783,120

29-Oct-2016

04:04

Outlook.exe

Outlook.exe

16.0.4456.1003

34,919,624

29-Oct-2016

04:04

Outlook.hol_1033

Outlook.hol

Not applicable

1,334,168

28-Oct-2016

03:01

Outlph.dll

Outlph.dll

16.0.4375.1000

429,360

28-Oct-2016

03:01

Outlvba.dll

Outlvba.dll

16.0.4456.1003

97,016

29-Oct-2016

04:04

Pstprx32.dll

Pstprx32.dll

16.0.4456.1003

2,566,352

29-Oct-2016

04:04

Rm.dll

Rm.dll

16.0.4444.1000

110,800

28-Oct-2016

03:01

Scnpst32.dll

Scnpst32.dll

16.0.4456.1003

610,136

29-Oct-2016

04:04

Scnpst64.dll

Scnpst64.dll

16.0.4456.1003

613,224

29-Oct-2016

04:04

Scnpst64c.dll

Scnpst64c.dll

16.0.4456.1003

812,912

29-Oct-2016

04:04


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