Outlook known issues in the June 2017 security updates
https://support.microsoft.com/en-us/office/outlook-known-issues-in-the-june-2017-security-updates-3f6dbffd-8505-492d-b19f-b3b89369ed9b
Aug 04, 2017 · If you’re an Microsoft 365 customer, install the latest updates to resolve the issues. Go to File > Office Account > Update Options > Update Now. For Outlook 2007, Outlook 2010, Outlook 2013 and Outlook 2016, install the updates below to fix the issue: Update for Outlook 2007: July 27, 2017. Update for Outlook 2010: July 27, 2017
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