A Security Update has been released for Outlook 2010. It resolves the vulnerabilities mentioned in CVE-2017-0106 and CVE-2017-0204 which could allow remote code execution if a user opens a specially crafted Office file or email message.
View: Download information for KB3118388
Note: This update can be installed via Microsoft Update and updates Outlook to version 14.0.7180.5001.
A Security Update has been released for Outlook 2007. It resolves the vulnerabilities mentioned in CVE-2017-0106 and CVE-2017-0204 which could allow remote code execution if a user opens a specially crafted Office file or email message.
View: Download information for KB3127890
Note: This update can be installed via Microsoft Update and updates Outlook to version 12.0.6767.5000.
This week’s new and updated Quick Tips highlights from HowTo-Outlook’s Q&A blog MSOutlook.info:
These tips and other headlines can also be followed via 
This week’s new and updated Quick Tips highlights from HowTo-Outlook’s Q&A blog MSOutlook.info:
These tips and other headlines can also be followed via
This week’s new and updated Quick Tips highlights from HowTo-Outlook’s Q&A blog MSOutlook.info:
These tips and other headlines can also be followed via
An issue has surfaced with the March Update for the Current Channel of Outlook 2016 for people that are using an Office 365 installation. After updating to this release or higher, search stops working for POP3 accounts and PST files.
Update 1:
This issue has been fixed in version 16.0.7870.2031. After applying this update, your Search Index might start to rebuild itself which could result in high(er) CPU usage and incomplete or no search results. Once everything has been indexed again, CPU usage will reduce again.
When you are still encountering Search issue then, continue with the regular troubleshooting steps to get Instant Search working again.
Update 2:
Additional Search Indexing issues were detected for all Outlook versions caused by a Windows update. These have been fixed by the July 2017 Cumulative Updates for your Windows version or by installing the update below;
You can check whether your installation is affected by going to; File-> Office Account. When this states that you are using Version 1702 (Build 7870.2020) or later, then your build is affected.
When you are indeed using a POP3 account and/or pst-files and search is no longer working for you, the current workaround is to revert to build 16.0.7571.2109 which is the January 4 release, also being referred to as Version 1611. Microsoft is actively investigating this issue but no release date for a fix could be provided at this point.
Before uninstalling the update, disable automatic update via:
File-> Office Account-> Update Options-> Disable Updates
Additionally, create a reminder in your Calendar to re-enable updates in May as a fix for this issue should be deployed by then (possibly even in April).
To uninstall the update and revert to Version 1611, open a Command Prompt as an Administrator and run the following command:
"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /update user updatetoversion=16.0.7571.2109
For more details and screenshots see: Uninstall Office 365 Click-To-Run Updates.
Cumulative Update 5 for Exchange 2016 is now available for direct download. It contains 7 documented new fixes or improvements and all previously released fixes and security updates for Exchange 2016.
Notable fixes and improvements are:
Download: Cumulative Update 5 for Exchange Server 2016 (KB4012106)
Download: Exchange Server 2016 CU5 UM Language Packs
View: Description of Cumulative Update 5 for Exchange Server 2016
View: Blog post of the Exchange Team about CU5 for Exchange Server 2016
Cumulative Update 16 for Exchange 2013 is now available for direct download. It contains 2 documented new fixes or improvements and all previously released fixes and security updates for Exchange 2013.
Notable fixes and improvements are:
Download: Cumulative Update 16 for Exchange Server 2013 (KB4012112)
Download: Exchange Server 2013 CU16 UM Language Packs
View: Description of Cumulative Update 16 for Exchange Server 2013
View: Blog post of the Exchange Team about CU16 for Exchange Server 2013
Update Rollup 17 for Exchange 2010 Service Pack 3 is now available for direct download. It contains 5 documented new fixes or improvements and all previously released fixes and security updates for Exchange 2010 SP3. Note that mainstream support for Exchange 2010 has already ended.
Notable fixes and improvements are:
View: Description of Update Rollup 17 for Exchange Server 2010 Service Pack 3
Download: Update Rollup 17 For Exchange 2010 SP3 (KB4011326)
Update Rollup 23 for Exchange 2007 Service Pack 3 is now available for direct download. This is the last update rollup for Exchange 2007 and support for Exchange 2007 will expire on April 4, 2017.
Aside from all previous updates released since Exchange 2007 SP3, this update also includes new time zone updates.
View: Description of Update Rollup 23 for Exchange Server 2007 Service Pack 3
Download: Update Rollup 23 for Exchange Server 2007 SP3 (KB4011325)
