An Update on Office 365 Requiring TLS 1.2

Hello Exchange Server followers! In December 2017 it was announced Office 365 planned to discontinue support for TLS 1.0 and TLS 1.1 connections on March 1st, 2018, and after that time only TLS 1.2 connections would be allowed when interacting with Office 365. Many of you have been asking for additional detail on what this…


Exchange Server TLS guidance, part 1: Getting Ready for TLS 1.2

Overview As the realm of security in technology continues to evolve over time, every so often we say hello to newer and more competent versions of technologies while saying goodbye to their older siblings. By the time you are reading this article you may have learned Office 365 intends to stop accepting inbound network connections…


EAI support announcement

Out of 7.6 billion people in the world, only 360 million are native English speakers. Although email has been the earliest and most widely-adopted platform for modern electronic communication, email addresses have only supported a limited subset of Latin characters (mostly due to historical reasons). People who don’t read or speak English have been forced…


Released: December 2017 Quarterly Exchange Updates

Update: Microsoft has identified a condition where Free/Busy lookups from On-Premises to O365 in a hybrid configuration may fail. Please see KB4058297 for additional information and mechanisms to resolve this condition. The December quarterly release updates for Exchange Server are now available on the download center (links below). In addition to the planned cumulative updates…


Looking back at Microsoft Ignite 2017

Ignite 2017 was busy and fun! We loved talking to many of you, answering many of your questions and listening to your feedback. Many teams are still collecting their thoughts into action items and following up with many of you. We also walked. A lot. You know what we mean if you were there! Most…


Migrate your public folders to Office 365 Groups

Over the last few months, we ran a TAP Program where our customers tested the batch migration process to move their public folders (both online and on-premises) to Office 365 Groups. We want to thank all of the customers who helped us out with the testing by sharing their experiences with us. The TAP program…


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 –…


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…