Look what Microsoft did with *.odt (OpenOffice&#x2F;LibreOffice) compatibility. Now they show bogus security and compatibility warning dialogs if you open or save such a file.<p>Look what they do with IMAP support in Outlook 2016. Pre-loading just the &quot;Subject&quot; (a feature supported since 1990s) got dropped, instead of the whole email incl attachments is downloaded.<p>And now we learn POP3 got crippled too. The common Microsoft tactics to lock-in end-user and enterprise customers to proprietary ever changing protocols only fully supported by their most recent server software - their Exchange and Outlook.com&#x2F;Office365 cloud eco-system.<p>Microsoft wants you to upgrade to Windows 10 on PC, adopt it on smartphones (even it has just 1.1% market share), on servers, SQL-Server 2016, Exchange 2016, Office365 (subscription based Office 2016 client, cloud based SharePoint 2016 = OneDrive for Business on Azure), Skype for Business (=rebranded Lync), etc. Oh, and they ask you to install their telemetry services for Office on your clients, to get a &quot;full picture&quot;. The telemetry and other phone home stuff cannot be turned off, except in the expensive LTSB license version. And several IPs and URLs are white lists in the kernel mode network layer, in all versions.<p>It&#x27;s up to you, to help Microsoft to create another monopoly. Or you out smart them and say no.