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Exchange Team Blog

You Had Me at EHLO..
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2,998

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.
5,567

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.
4,520

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.
20.5K

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.
9,780

Servicing Exchange Server

The_Exchange_Team on Nov 15 2022 12:03 PM
We wanted to provide several updates related to servicing Exchange Server.
69.7K

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.
12.3K

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.
17.7K

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.
9,065

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...
54.6K

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.
15.9K

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.
128K

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...
83.4K

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 ...
11.3K

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.
16.2K

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.
8,394

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...
11.5K

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 ...
8,297

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
5,378

#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...
733K

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...
13.4K

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...
6,367

Looking Into Exchange Server Disk I/O Latency Issues

The_Exchange_Team on Aug 30 2022 07:50 AM
Traditionally, disk latency is one of main areas to explore if you are seeing performance issues with Exchange Server.
6,354

Converting mailboxes already migrated to Exchange Online to Shared mailboxes

The_Exchange_Team on Aug 29 2022 08:57 AM
How do you convert mailboxes already migrated to Exchange Online to Shared mailboxes? Read on!
18K

Notes from the field: Using OAuth for ActiveSync and POP/IMAP in Exchange Online

The_Exchange_Team on Aug 22 2022 08:54 AM
We wanted to address two areas that prompt questions about using OAuth in Exchange Online: Exchange ActiveSync (EAS) rep...
6,075

Finding Transport Rule Size Part 2 – Regex Limit

The_Exchange_Team on Aug 11 2022 12:48 PM
We have received questions from customers who want to know how to determine the character limit for regular expressions ...
133K

Released: August 2022 Exchange Server Security Updates

The_Exchange_Team on Aug 09 2022 10:04 AM
We are releasing a set of security updates for Exchange Server 2013, 2016 and 2019.
28.8K

Announcing OAuth 2.0 Client Credentials Flow support for POP and IMAP protocols in Exchange Online

The_Exchange_Team on Jun 30 2022 11:04 AM
Today, we’re excited to announce the availability of OAuth 2.0 authentication via client credentials grant flow for the ...
13.6K

Exchange Server 2013 End of Support Reminder

Scott Schnoll on Jun 24 2022 02:03 PM
Exchange Server 2013 will reach End of Support on April 11, 2023, and we strongly recommend that you migrate from Exchan...
63.5K

Microsoft and Apple Working Together to Improve Exchange Online Security

The_Exchange_Team on Jun 16 2022 08:00 AM
Today we’re delighted to take the next step along the journey to transition away from basic auth by sharing the work we’...
12.8K

Consistently block delegates or shared mailbox members from accessing protected messages in Outlook

The_Exchange_Team on Jun 06 2022 01:58 PM
Based on customer feedback, we are introducing new Get/Set/Remove-MailboxIRMAcess cmdlets that provide admins with more ...

Latest Comments

conceptworks
in Cross-tenant User Data Migration is Now Generally Available on Dec 09 2022 06:01 PM
Hi, I have created a detailed video for the migration process. Please watch it here. https://youtu.be/5uAAgBbrosg Let me know your thoughtsThanks
0 Likes
ThorstenK2
in Announcing Public Preview of Role Based Access Control for Applications in Exchange Online on Dec 09 2022 11:30 AM
seems like the next post Notes from the field: Using app-only authentication with customized RBAC roles in Exchange Online - Microsoft Community Hubaddressed exactly that, will give it a try.thx
0 Likes
ThorstenK2
in Notes from the field: Using app-only authentication with customized RBAC roles in Exchange Online on Dec 09 2022 11:29 AM
Great customer had to refrain from using this just weeks ago as RecipientWritescope and limiting the cmdlets/Parameters was not possible until now."The role assigned to application cd336608-5f8b-4360-a9b6-2b6374a9dc75 isn't supported in this scenario. Please check online documentation for assigning ...
0 Likes
ThorstenK2
in Announcing Public Preview of Role Based Access Control for Applications in Exchange Online on Dec 09 2022 10:16 AM
@Scott Schnoll +1 to Branko984just recently a customer wanted to switch his SelfServiceSolution for Forwarding (Self or by manager) to an AppRegistration instead of an (MFA excempt) Useraccount.But a) we cant scope the DEV-Version to only a RecipientWriteScope.And b) we cant create a custom role to ...
0 Likes
Satyajit321
in Notes from the field: Using app-only authentication with customized RBAC roles in Exchange Online on Dec 08 2022 10:25 PM
This is fantastic. Few questions:1. Does this mean the RBAC scoping will also apply and we don't have to rely on Application Access Policies 2. Role Based Access Control for Applications in Exchange Online - Microsoft Community Hub this one appears to be almost nearby, but slightly different. Coinci...
0 Likes