Changes coming to the SMTP Authenticated Submission client protocol

There are a number of client protocols offered by Exchange Online to allow email clients to send email from their mailboxes. One of the most widespread protocols is SMTP Authenticated Submission (also known as SMTP Client Submission) which is supported by most email service providers. This non-proprietary protocol is used to send email by legacy…


Exchange Server 2013 Enters Extended Support Lifecycle Phase

Exchange Server 2013 enters the Extended Support phase of product lifecycle on April 10th, 2018. During Extended Support, products receive only updates defined as Critical consistent with the Security Update Guide. For Exchange Server 2013, critical updates will include any required product updates due to time zone definition changes. With the transition of Exchange Server…


A new architecture for Exchange hybrid customers enables Outlook mobile and security

We’re announcing a new architecture for Exchange Server and Office 365 hybrid customers that unlocks Enterprise Mobility + Security (EMS) capabilities for Outlook for iOS and Android. With Hybrid Modern Authentication, Exchange customers can combine the power of Outlook with Azure Conditional Access and Intune App Protection Policies to securely manage corporate messaging on mobile…

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Exchange Server TLS guidance Part 2: Enabling TLS 1.2 and Identifying Clients Not Using It

Overview In part 2 of our Exchange Server TLS Guidance series we focus on enabling and confirming TLS 1.2 can be used by your Exchange Servers for incoming and outgoing connections, as well as identifying any incoming connection which is not utilizing TLS 1.2. The ability to identify these incoming connections will vary by Windows…


Released: March 2018 Quarterly Exchange Updates

The March quarterly release updates for Exchange Server are now available on the download center (links below). These releases include all previously released updates, fixes for customer reported issues and limited new functionality. Exchange Server 2010 SP3 Update Rollup 20 was released as a security update previously this month as well. Exchange Server Support for…


OWA mobile apps to be retired in May

We wanted to post a quick note to let you know that we have announced the retirement of OWA for iPhone, iPad and Android.  To learn more, head over to the Tech Community blog. Outlook Team


EAI support announcement – Update

In late December 2017, we announced support for EAI in Q1 2018. We are happy to announce that EAI is now enabled in Exchange Online and Exchange Online Protection for Office 365. Office 365 users can now send messages to and receive messages from internationalized email addresses. In addition, we are pleased to announce that…


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

Update: With the Office 365 deadline to have TLS 1.2 enabled being moved from March 2018 to October 2018 we have changed the timing of subsequent post releases; please see below! Overview As the realm of security in technology continues to evolve over time, every so often we say hello to newer and more competent…