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Exchange Team Blog

You Had Me at EHLO..
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7,926

Protect Your Exchange Servers

The_Exchange_Team on Jan 26 2023 01:08 PM
We’ve said it before, we’re saying it now, and we’ll keeping saying it: it is critical to keep your Exchange servers upd...
6,339

Introducing Support for Concurrent Exchange Online License Assignments

The_Exchange_Team on Jan 20 2023 06:54 AM
We recently enabled a new feature in Office 365, which allows tenant admins to assign more than one Exchange Online lice...
8,000

Help us Improve the Exchange Server Update Experience

The_Exchange_Team on Jan 19 2023 11:40 AM
We’re looking into ways in which we can improve the experience of installing Exchange Server Cumulative Updates (CUs) an...
3,595

Content Search for Targeted Collection of Inactive Mailbox Data

The_Exchange_Team on Jan 18 2023 12:52 PM
How can you use Content Search to retrieve Inactive mailbox data? Read on!
6,868

Exchange Server 2013 End of Support Coming Soon

Scott Schnoll on Jan 12 2023 11:40 AM
Exchange Server 2013 will reach End of Support on April 11, 2023, which is less than 90 days away!
57.2K

Released: January 2023 Exchange Server Security Updates

The_Exchange_Team on Jan 10 2023 10:01 AM
We are releasing a set of security updates for Exchange Server 2013, 2016 and 2019.
7,741

New opt-in endpoint for POP3/IMAP4 clients that need legacy TLS

The_Exchange_Team on Jan 06 2023 07:17 AM
We have created an opt-in endpoint for POP3/IMAP4 clients still requiring TLS1.0 and TLS1.1.
75.5K

Basic Authentication Deprecation in Exchange Online – Time’s Up

The_Exchange_Team on Dec 20 2022 11:19 AM
In early January 2023, we will permanently turn off Basic auth for multiple protocols for many Exchange Online tenants.
22.3K

Announcing Deprecation of Remote PowerShell (RPS) Protocol in Exchange Online PowerShell

The_Exchange_Team on Dec 15 2022 07:06 AM
Today, we are announcing that starting June 1, 2023, we will start blocking RPS connections to Exchange Online and will ...
9,323

Notes from the field: Using app-only authentication with customized RBAC roles in Exchange Online

The_Exchange_Team on Dec 05 2022 07:33 AM
Switching non-interactive Exchange Online PowerShell logons to OAuth.
12.1K

Announcing Public Preview of Role Based Access Control for Applications in Exchange Online

The_Exchange_Team on Dec 01 2022 02:58 PM
Today, we are excited to announce the Public Preview of Role Based Access Control for Applications in Exchange Online.
8,091

Outlook REST API v2.0 and Beta deprecation update

The_Exchange_Team on Nov 23 2022 07:16 AM
We wanted to provide an update on Outlook REST API v2.0 and Beta deprecation.
28.5K

Basic Authentication Deprecation in Exchange Online – What’s Next

The_Exchange_Team on Nov 16 2022 01:40 PM
We wanted to let you know about the next chapter in our retirement of basic authentication in Exchange Online.
15.5K

Servicing Exchange Server

The_Exchange_Team on Nov 15 2022 12:03 PM
We wanted to provide several updates related to servicing Exchange Server.
97.1K

Released: November 2022 Exchange Server Security Updates

The_Exchange_Team on Nov 08 2022 10:00 AM
We are releasing a set of security updates for Exchange Server 2013, 2016 and 2019.
15.6K

Deprecating Conversion of Distribution Lists to Microsoft 365 Groups

The_Exchange_Team on Nov 03 2022 08:43 AM
We are deprecating the toolkit for migrating Distribution Lists to Microsoft 365 Groups on February 1, 2023.
21.8K

Cross-tenant User Data Migration is Now Generally Available

The_Exchange_Team on Nov 01 2022 03:43 PM
Today, we’re thrilled to announce that cross-tenant user data migration is now generally available.
9,919

Deprecating bad item limit and large item limit migration parameters

The_Exchange_Team on Oct 13 2022 06:48 AM
The time has come to fully deprecate Bad Item Limit / Large Item Limit migration parameters and use DCS to measure and g...
58K

Released: October 2022 Exchange Server Security Updates

The_Exchange_Team on Oct 11 2022 10:02 AM
We are releasing a set of security updates for Exchange Server 2013, 2016 and 2019.
22.2K

Use Authentication Policies to Fight Password Spray Attacks

The_Exchange_Team on Oct 03 2022 02:19 PM
You should read this post if basic authentication is in use in your tenant for any protocol.
179K

Exchange Online email applications stopped signing in, or keep asking for passwords? Start here.

The_Exchange_Team on Oct 01 2022 07:30 AM
If your email clients stopped signing in starting October (as we disable basic authentication in Exchange Online) - this...
87.4K

Customer Guidance for Reported Zero-day Vulnerabilities in Microsoft Exchange Server

The_Exchange_Team on Sep 30 2022 12:06 AM
We have gotten several questions from our customers related to recent reports of new zero-day vulnerabilities impacting ...
12.3K

Deprecation of Client Access Rules in Exchange Online

The_Exchange_Team on Sep 27 2022 07:09 AM
Today, we are announcing the retirement of CARs in Exchange Online, to be fully deprecated by September 2023.
23.3K

Exchange Online PowerShell V3 Module General Availability

The_Exchange_Team on Sep 20 2022 06:56 AM
The Exchange Online PowerShell v3 module (the v3 module) is now Generally Available.
9,757

Notes from the field: does Outlook for Mac insist on using basic auth with Exchange Online?

The_Exchange_Team on Sep 16 2022 10:45 AM
It may be frustrating to find some Outlook for Mac clients that are up to date but still turning up in your sign-in repo...
12.8K

An update to the Exchange Server Extended Protection script is now available

The_Exchange_Team on Sep 15 2022 03:23 PM
We’ve released an update to the script for enabling Extended Protection on your Exchange Servers after the installation ...
8,790

Join us Sept 13-14 at the Microsoft Exchange Community (MEC) Technical Airlift

The_Exchange_Team on Sep 09 2022 08:40 AM
MEC is Back! Join us September 13-14 for this free, digital airlift dedicated to Exchange Online and Exchange Server
5,947

#WeAreMEC: IN CASE YOU MISSED IT... MEC is back September 13-14!

Scott Schnoll on Sep 07 2022 09:53 AM
It’s been a while since our last MEC, and a lot has changed since then. The MEC Technical Airlift is a free, digital eve...
822K

Basic Authentication Deprecation in Exchange Online – September 2022 Update

The_Exchange_Team on Sep 01 2022 08:00 AM
Starting on October 1st, 2022 we’re going to start to turn off basic authentication for specific protocols in Exchange O...
16.8K

Decommissioning Exchange Server 2013

The_Exchange_Team on Aug 31 2022 07:33 AM
To help Exchange 2013 customers move to a newer version of Exchange Server, here’s an overview of Exchange 2013 decommis...

Latest Comments

Alfredo Saavedra
in Introducing Support for Concurrent Exchange Online License Assignments on Jan 27 2023 03:35 PM
By the way the command: Get-Recipient test1 | select RootCapabilitiesWill only works if the mailbox have two or more licenses.. otherwise it shows empty .. then if you remove one of the two, then you will see the current license type used.
0 Likes
Robert_Blissitt1930
in Released: January 2023 Exchange Server Security Updates on Jan 27 2023 01:14 PM
@Lukas Sassl We installed the January SU and left the Serialized Data Signing feature disabled as we require Queue Viewer. Starting a few months ago, Exchange decided that after we moved database service between servers, messages destined to mailboxes on those databases would sometimes get stuck in ...
0 Likes
ceantuco
in Released: January 2023 Exchange Server Security Updates on Jan 27 2023 12:53 PM
@Lukas Sassl thanks! 
0 Likes
Lukas Sassl
in Released: January 2023 Exchange Server Security Updates on Jan 27 2023 12:51 PM
@ceantuco the signing feature is optional (but recommended). However, if you need to use the Queue Viewer and can’t use Exchange Management Shell, you can (and should) install the January 2023 SU and just leave the Serialized Data Signing feature disabled until this has been addressed.
0 Likes
ceantuco
in Released: January 2023 Exchange Server Security Updates on Jan 27 2023 12:45 PM
@Lukas Sassl since there is no fix for the queue viewer issue, should I install the SU and not enable Certificate signing of PowerShell serialization payload? or do not even bother installing the SU until a solution for the queue viewer issue is provided? Please adviseThanks!
0 Likes