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Exchange Team Blog

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11.9K

Retirement of Exchange Web Services in Exchange Online

The_Exchange_Team on Sep 19 2023 08:00 AM
Today, we are announcing that on October 1, 2026, we will start blocking EWS requests from non-Microsoft apps to Exchang...
14.4K

September 2023 release of new Exchange Server CVEs (resolved by August 2023 Security Updates)

The_Exchange_Team on Sep 12 2023 10:00 AM
We wanted to clarify the release of new Exchange Server CVEs today.
4,675

Outlook REST API v2.0 and beta endpoints decommissioning update

The_Exchange_Team on Sep 06 2023 11:32 AM
We wanted to provide an update to Outlook REST API v2.0 and beta endpoints decommissioning process.
11.5K

Announcing support for HSTS on Exchange Server 2016 and 2019

The_Exchange_Team on Aug 29 2023 08:27 AM
We’re happy to announce that Microsoft Exchange Server now officially supports HTTP Strict Transport Security, also know...
13.6K

Coming Soon: Enabling Extended Protection on Exchange Server by Default

The_Exchange_Team on Aug 28 2023 11:21 AM
We wanted to share upcoming changes with Exchange Server Extended Protection (EP).
4,896

Deprecation of Classic Exchange Admin Center in Microsoft 365 Operated by 21Vianet

The_Exchange_Team on Aug 23 2023 02:59 PM
Today, we are announcing the deprecation of the classic Exchange admin center (EAC) in Microsoft 365 operated by 21Viane...
50.7K

Re-release of August 2023 Exchange Server Security Update packages

The_Exchange_Team on Aug 15 2023 05:24 PM
Today we are re-releasing the August 2023 SU packages for Exchange Server.
138K

Released: August 2023 Exchange Server Security Updates

The_Exchange_Team on Aug 08 2023 10:02 AM
We have released Security Updates for Exchange Server 2016 and Exchange Server 2019.
6,703

Deprecation of Classic Exchange Admin Center (EAC) in GCC and GCC-H environments

The_Exchange_Team on Jul 31 2023 07:51 AM
Today, we are announcing the deprecation of the classic Exchange admin center (EAC) in our GCC and GCC-H environments.
9,776

Exchange Online ETRs to stop supporting DLP policies

The_Exchange_Team on Jul 28 2023 12:08 PM
Today, we are announcing we are discontinuing support for DLP rules within Exchange Online ETRs
28.5K

Announcing New DMARC Policy Handling Defaults for Enhanced Email Security

The_Exchange_Team on Jul 19 2023 12:19 PM
Today, we are announcing important changes to our DMARC policy handling that affect both consumer and enterprise custome...
14.3K

Announcing Client Credential Flow for SMTP AUTH in Exchange Online

The_Exchange_Team on Jul 10 2023 08:31 AM
We are excited to announce support of Client Credential Flow (CCF) for SMTP AUTH in Exchange Online.
9,635

Public Preview: Exchange Online RBAC management in Microsoft Graph using Unified RBAC Schema

The_Exchange_Team on Jul 05 2023 09:22 AM
Today, we’re excited to announce the public preview of Exchange Online Role Based Access Control (RBAC) management in Mi...
11.1K

Updated Hybrid Configuration Wizard Available

The_Exchange_Team on Jun 29 2023 08:31 AM
Today, we’re excited to announce the latest release of the HCW, which now supports Exchange Online REST-based APIs.
41.3K

Updated Requirements for SMTP Relay through Exchange Online

The_Exchange_Team on Jun 19 2023 10:27 AM
Today, we are announcing an update to our requirements for SMTP relay through Exchange Online.
46.7K

Released: June 2023 Exchange Server Security Updates

The_Exchange_Team on Jun 13 2023 10:00 AM
We have released Security Updates for Exchange Server 2016 and Exchange Server 2019.
14.4K

Final Deprecation of Classic Exchange Admin Center (EAC) in Exchange Online

The_Exchange_Team on Jun 08 2023 06:26 AM
Today we are announcing that the classic EAC will be deprecated in our WW environment on June 20, 2023.
8,463

Announcing General Availability of the Modern EAC in Microsoft 365 operated by 21Vianet

The_Exchange_Team on Jun 02 2023 12:53 PM
We are pleased to announce the general availability of the modern Exchange admin center (EAC) in Microsoft 365 operated ...
8,828

Reminder: End of REST API for On-Premises Mailboxes Preview

The_Exchange_Team on May 23 2023 09:10 AM
We’re about a month away from the deadline we communicated in our blog post and Message Center posts, and we want to rem...
15.7K

Update on Transport Enforcement System in Exchange Online

The_Exchange_Team on May 22 2023 03:20 PM
We are going to delay the release of the report to the first set of customers by 1 month.
11.9K

Journaling in Hybrid Scenarios

The_Exchange_Team on May 15 2023 06:27 AM
In Exchange hybrid, we often see mixed configurations where journaling is enabled on Exchange Server or in Exchange Onli...
8,345

Troubleshooting Public Folder Deletion Issues in Exchange Online

The_Exchange_Team on May 11 2023 12:42 PM
This blog post is to help admins troubleshoot deletion issues with Exchange Online public folders.
21.4K

Deprecation of Remote PowerShell (RPS) Protocol in Security and Compliance PowerShell

The_Exchange_Team on May 08 2023 10:06 AM
Starting July 15, 2023, we will start deprecating the legacy RPS protocol in the Security and Compliance PowerShell modu...
28.9K

Throttling and Blocking Email from Persistently Vulnerable Exchange Servers to Exchange Online

The_Exchange_Team on May 08 2023 08:16 AM
As we continue to enhance the security of our cloud, we are going to address the problem of email sent to Exchange Onlin...
64.5K

Released: 2023 H1 Cumulative Update for Exchange Server

The_Exchange_Team on May 03 2023 03:10 PM
Today we are announcing the availability of Cumulative Update for Exchange Server 2019.
14.5K

Blog Series: Email Protection Basics

The_Exchange_Team on May 01 2023 08:51 AM
Check out the Email Protection Basics in Microsoft 365 blog series (including any future articles) at https://aka.ms/Ema...
7,989

Issue with CSS-Exchange script update function caused automatic script updates to fail

The_Exchange_Team on Apr 24 2023 08:32 AM
If you use scripts from our CSS-Exchange GitHub repo, you might need to update them manually.
14.9K

Update: Deprecation of Client Access Rules in Exchange Online

The_Exchange_Team on Apr 07 2023 09:30 AM
We wanted to give you an update on deprecation of Client Access Rules in Exchange Online.
74.9K

Deprecation of Remote PowerShell in Exchange Online – Re-enabling or Extending RPS support

The_Exchange_Team on Mar 27 2023 08:18 AM
We wanted to let you know about the next chapter in our retirement of RPS protocol in Exchange Online.
35.7K

Best Practices for Migrating from Exchange Server 2013 to Exchange Server 2019

The_Exchange_Team on Mar 20 2023 09:38 AM
We wanted to provide a final overview of best practices for Migrations from Exchange Server 2013.

Latest Comments

MI5-Agent
in The End of the REST API for On-Premises Mailboxes Preview on Sep 23 2023 09:13 AM
why there is still access to OnPrem Exchange 2019 servers from Teams/Graph with Exchange Hybrid to /api? Blocked access to invalid directory '/api/v2.0/me/$batch' from 52.123.159.143:6209 to x.x.x.x:443 Blocked access to invalid directory '/api/v2.0/me/subscriptions' from 52.123.159.147:9091 to x.x....
0 Likes
MarkMark
in Re-release of August 2023 Exchange Server Security Update packages on Sep 22 2023 02:14 PM
@chrisc72 - curious if you got to the bottom of the Watson reports / IIS AppPool crashes? We just encountered the same thing yesterday morning on a few servers, all right around the same time. iisreset helped on one, full reboots helped on others. Haven't seen it again and haven't been able to trace...
0 Likes
Tom_R_
in Coming Soon: Enabling Extended Protection on Exchange Server by Default on Sep 22 2023 11:19 AM
@Nino Bilic & @The_Exchange_Team I understand that SSL Offloading is not supported for EP.Our Load Balancers are configured with SSL pass-through. Is this a supported configuration for the enablement of EP? Thanks!
0 Likes
jrennefeld
in Retirement of Exchange Web Services in Exchange Online on Sep 22 2023 08:10 AM
One feature of EWS that is not available with the graph API is the ability to create/modify/delete inbox rules.This is something that we need to be supported before EWS is disabled.
0 Likes
Debra_P
in Announcing OAuth 2.0 Client Credentials Flow support for POP and IMAP protocols in Exchange Online on Sep 22 2023 07:49 AM
Hi Kinjal1012I've included a snippet of my code that is working successfully. When using OAuth, you shouldn't be adding an Authenticator to the Session variable (instead leave it as null) since you have already obtained the access (bearer) token. That token should be added as a value to the "mail.sm...
0 Likes