News Attachments are blocked after applying June 2017 update – Fixes available now

After applying the June update for Outlook 2007, 2010, 2013 or Outlook 2016 (MSI) some attachments may be blocked from being opened. There are two issues here;

  • Attachments could get blocked as they are deemed “potentially unsafe attachments” even when they don’t have an unsafe file extension (like pdf, docx, xlsx).

    The blocked attachments are mentioned in the Infobar.
    The blocked attachments are mentioned in the Infobar.

    This issue applies to files that have two dots or an exclamation mark in front of their file extension;
    -test..txt
    -test!.txt

  • Attachments that are embedded (with the file icon shown in the message body) in an RTF formatted message, calendar item, contact item or task item can’t be opened. Trying to do so produces the error;
    • The program used to create this object is Outlook. That program is either not installed on your computer or it is not responding. To edit this object, install Outlook or ensure that any dialog boxes in Outlook are closed.

Error when trying to open an embedded attachment after applying the June 2017 update.
Error when trying to open an embedded attachment after applying the June 2017 update.

Update June 28 and July 5: Fixes now available for some versions
New updates have been released for some versions of Outlook which fixes these issues. The other versions will follow soon!

  • Outlook 2007
    Not yet available.
  • Outlook 2010
    KB4011042 (download: 32-bit or 64-bit)
    This update is currently not available but will be re-released soon.
  • Outlook 2013
    KB3191849 (download: 32-bit or 64-bit)
  • Outlook 2016 (MSI)
    KB3213654 (download: 32-bit or 64-bit
  • Outlook 2016 (Office 365)
    Fixed in Version 1706 (Build 8229.2073) get it via Update Now.
    Not yet fixed for the Deferred Channels.

Current workarounds are;

  • For the first issue; Download the files via web mail. Exchange and Outlook.com users can use Outlook on the Web (OWA) for this, Gmail users can use the Gmail website, etc…
  • For the second issue, you can save the files to your Desktop (drag & drop also works) and open the files from there.
  • Uninstall the June update for your Outlook version. Please note that this is a security update, so uninstalling the update is only recommended when you know the risks and can’t use the other workarounds.

For further information and descriptions of other issues regarding these updates also see; Outlook known issues in the June 2017 security updates.

News Outlook 2016 Security Update for June 2017

A Security Update has been released for Outlook 2016. In addition to resolving the vulnerabilities, it also contains 15 documented improvements and fixes.

Most notable fixes and improvements are:

  • Resolves the vulnerabilities mentioned in CVE-2017-8506, CVE-2017-8507, and CVE-2017-8508 which could allow remote code execution if a user opens a specially crafted Office file or email message.
  • If you have a profile that has a Microsoft SharePoint calendar in Outlook 2016 and the calendar is synchronizing in the background, Outlook 2016 may crash.
  • After a delegate views a rejected meeting, the declined meeting appears in the calendar again if the delegate has not rejected the meeting.

Office 365 subscribers have also received the following feature updates;

View: Download information for KB3191932

Note: This update can be installed via Microsoft Update or the Update Now button when you are using Office 365 and updates Outlook to version 16.0.4549.1002 (msi-based installation) or 16.0.8201.2102 (Office 365 based installation) or 16.0.7766.2092 (Office 365 Deferred Channel installation).

News Outlook 2013 Security Update for June 2017

A Security Update has been released for Outlook 2013. In addition to resolving the vulnerabilities, it also contains 12 documented improvements and fixes.

Most notable fixes and improvements are:

  • Resolves the vulnerabilities mentioned in CVE-2017-8506, CVE-2017-8507, and CVE-2017-8508 which could allow remote code execution if a user opens a specially crafted Office file or email message.
  • Enable users to install and manage (web) add-ins in Outlook 2013 rather than in the Outlook Web App.
  • Disables the message rule actions to start an application or run a macro (VBA script). To re-enable them, you can set the EnableUnsafeClientMailRules Registry value.
  • After you switch networks on a computer, Outlook 2013 sometimes won’t reconnect to the Microsoft Exchange server.

View: Download information for KB3191938

Note: This update can be installed via Microsoft Update or the Update Now button when you are using Office 365 and updates Outlook to version 15.0.4937.1000.

HowTo Imported IMAP folders are not visible or don’t show any content

IMAP Folders buttonWhen you’ve exported your IMAP mailbox or specific folders to a pst-file which you then later open in Outlook or import into an Exchange or Outlook.com mailbox, you may be shocked to see that these folders don’t contain anything.

Additionally, when you configure this mailbox on a smartphone or tablet as an Exchange ActiveSync account, these folders may not show at all.

Luckily, this can be fixed without any data loss but the process to do so via MFCMAPI is not for the faint of heart or when you have many folder to fix.

Therefor, this guide also contains a script which you can run to apply the fix for you. You can either fix a single folder, a folder and its subfolders or your entire mailbox at once.

Continue reading: Imported IMAP folders are not visible or don’t show any content