Help us test Exchange public folder migrations to Office 365 Groups

If you are using Public Folders (legacy or Modern) and would like to migrate some of them to Office 365 Groups, we are working on a solution for that. We are starting with the migration of Calendar folders and will move on to other types as we complete work on calendars. We would like to…


Multi-Factor Authentication in Exchange and Office 365

Multi-Factor Authentication (MFA), which includes Two-factor authentication (2FA), in Exchange Server and Office 365, is designed to protect against account and email compromise. Microsoft has evaluated recent reports of a potential bypass of 2FA. We have determined that the technique described is not a vulnerability and the potential bypass does not exist on properly configured…


Update on Windows Server 2016 and Exchange Server 2016

Update 12/13/2016: Please see the December 2016 Quarterly Exchange Updates blog post for updates on this subject. We wanted to raise your attention to an issue that some customers have reported running Exchange Server 2016 on Windows Server 2016. Crashes of the IIS (W3WP.exe) process have been reported causing instability of Exchange Server on Windows…


Configure rich document collaboration using Exchange Server 2016, Office Online Server (OOS) and SharePoint Server 2016

This post explains the configuration steps needed to get rich document collaboration working between Exchange Server 2016, SharePoint Server 2016, and Office Online Server, in your On-Premises environment. Please use this link if you’re looking for configuration steps for Exchange Server 2016 On-Premises and SharePoint Online Introduction When used together, Exchange Server 2016, SharePoint Server…


Change in behavior for delicensed Exchange Online users

Several weeks ago, we enabled a new Office 365 feature to some tenants where the removal of the Exchange License didn’t immediately mail disable the user and disconnected the mailbox. The new behavior then required to manually (via RPS – remote PowerShell) go and run through EXO RPS the Disable-Mailbox -PermanentlyDelete cmdlet to achieve the…


Active Directory Forest Functional Levels for Exchange Server 2016

Our September 2016 release blog included a statement that is causing some confusion with customers. The confusion relates to our support of Windows Server 2016 with Exchange Server 2016. The blog included a statement that read, “Domain Controllers running Windows Server 2016 are supported provided Forest Functional Level is Windows Server 2008R2 or Later.” We…


Top 10 Moments in 20 Years of Exchange Server

During the recent Microsoft Ignite conference, we had a party celebration of 20 years of Exchange Server. It was great fun and very dignified, of course. During the said celebration, there was a great video shown, that poked fun at some of the significant moments in Exchange history. This is now available for you to enjoy:…

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The Hybrid Mesh

During the recent Microsoft Ignite conference I heard questions related to hybrid and partner free/busy relationships quite often, so I wanted to write about it. This scenario applies to companies with one or more external free busy relationships configured. For instance, you could have two or more companies on-premises sharing free/busy between each other. Then…


Managing Focused Inbox in Office 365 and Outlook

Editor’s note 1/20/2017: Update on rollout for commercial Office 365 customers: We are continuing our rollout of Focused Inbox. Here is an updated availability timeline by platform. Platform Required build Users in First Release Users in Standard Release iOS Already available Already available Already available Android Already available Already available Already available Mac1 15.26+ Began…


Migration to Modern Public Folders – Notes from the Field

In this blog post I wanted to go through the documented TechNet process for migrating legacy public folders to Exchange 2013/2016, expanded with real world guidance gained from field support. I have been involved in a number of legacy public folder data migrations to Exchange 2013/2016 and I wanted to pass along some of the…