Office 2016, Office 365, and October 2020

Microsoft has published some statements about not allowing older Office clients to connect to Office 365 from October 2020. Well, the word “allow” should really be read as “support.” Or so we hear.
The Office 365 for IT Pros eBook team covers a wide range of Exchange Online topics in the book and on our web site. Anything from setting email auto-replies to protecting email with transport rules.
Microsoft has published some statements about not allowing older Office clients to connect to Office 365 from October 2020. Well, the word “allow” should really be read as “support.” Or so we hear.
Microsoft Teams support Office 365 retention policies, but how do you know if policies you create are effective in removing items from Teams? Well, as it turns out, you must go poking under the covers to validate that removals happen as planned.
Microsoft has released a new setting in the tenant Information Rights Management (IRM) configuration to control if attachments of messages encrypted with the Encrypt Only feature (in OWA and Outlook) are decrypted when downloaded. In fact, two settings are available. One for people with Azure AD accounts, and one for those without.
Microsoft thoughtfully provided Office 365 tenants with a Data Loss Prevention template for GDPR personal data. The only problem is that the rules in the template were too sensitive and started to block email.
The Office 365 MyAnalytics application is to add Skype for Business signals (and then Teams) to the set of data it processes to derive insights about the time users spend on different activities.
The Search-Mailbox cmdlet is very powerful when it comes to removing items from Exchange Online mailboxes, but it can’t deal with other Office 365 content.
A recent post by MVP Mark Vale describes how to use synchronization transformation rules in AADConnect to change the last name, first name format (for example, Smith, James) for display names to a more user-friendly first name last name format (our example becomes James Smith) for accounts as they synchronize to Azure Active Directory from an …