Announcing availability of 250,000 public folder Exchange 2010 hierarchy migrations to Exchange Online

Last September, we announced a beta program to validate onboarding of public folder data from Exchange 2010 on-premises to Exchange Online with large public folder hierarchies (100K – 250K public folders). We are glad to announce that Exchange Online now officially supports public folder hierarchies of up to 250K public folders in the cloud –…


Modern public folders logging and when to use it

Hello again! In our last article, we discussed recommendations for deployment of public folders and public folder mailboxes. In this post, we will be discussing methods and tips for monitoring connections being made to the Public Folder mailboxes with the help of different log types available in Exchange Server 2013 and Exchange Server 2016. This…


Released: June 2017 Quarterly Exchange Updates

The latest set of Cumulative Updates for Exchange Server 2016 and Exchange Server 2013 are now available on the download center. These releases include fixes to customer reported issues, all previously reported security/quality issues and updated functionality. Updated functionality in Cumulative Update 6 With Cumulative Update 6 we are adding two highly anticipated features; Sent…


.NET Framework 4.7 and Exchange Server

Update 6/15/2017: Added a clarification that .Net Framework 4.7 has shipped and that we are still validating this release with Exchange Server. We wanted to post a quick note to call out that our friends in .NET have released the .NET Framework 4.7 to Windows Update for client and server operating systems it supports. We…


Announcing Original Folder Item Recovery

Cumulative Update 6 (CU6) for Exchange Server 2016 will be released soonTM, but before that happens, I wanted to make you aware of a behavior change in item recovery that is shipping in CU6.  Hopefully this information will aid you in your planning, testing, and deployment of CU6. Item Recovery Prior to Exchange 2010, we…

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TooManyBadItemsPermanentException error when migrating to Exchange Online?

Some of you may have noticed that more migrations might be failing due to encountering ‘too many bad items’. Upon closer review, you may notice that the migration report contains entries referencing corrupted items and being unable to translate principals. I wanted to take a few minutes and provide more information to help understand what…


Office 365 Directory Based Edge Blocking support for on-premises Mail Enabled Public Folders

Update 7/10/17: Added a line about OU consideration to Important Notes section. Until now, our on-premises customers who use  Mail Enabled Public Folders (MEPF) could not use services like Directory Based Edge Blocking (DBEB). If DBEB is enabled, any mails sent to Mail Enabled Public Folders (MEPF) will be dropped at the service network perimeter….


Demystifying Certificate Based Authentication with ActiveSync in Exchange 2013 and 2016 (On-Premises)

Some of the more complicated support calls we see are related to Certificate Based Authentication (CBA) with ActiveSync. This post is intended to provide some clarifications of this topic and give you troubleshooting tips.What is Certificate Based Authentication (CBA)? Instead of using Basic or WIA (Windows Integrated Authentication), the device will have a client (user)…


Help us test Cloud Attachments in Outlook 2016 with SharePoint Server 2016

My name is Steven Lepofsky, and I’m an engineer on the Outlook for Windows team. We have released (to Insiders) support for Outlook 2016’s Cloud Attachment experience with SharePoint Server 2016. We need your help to test this out and give us your feedback! So, what do I mean by “cloud attachments?” Let’s start there….


Exchange 2007 reaches end of life on April 11th. What’s your plan to move?

On April 11, 2017, Exchange Server 2007 will reach End of Life. If you haven’t already begun your migration from Exchange 2007 to Office 365 or Exchange 2016, you need to start planning now. End of life means that Microsoft will no longer provide the following for Exchange 2007: Free or paid assisted support (including…