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Exchange Team Blog

You Had Me at EHLO..

  • 1,898 Blog Articles
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139K

Released: November 2021 Exchange Server Security Updates

The_Exchange_Team on Nov 09 2021 10:01 AM
We are releasing a set of security updates for Exchange Server 2013, 2016 and 2019.
7,447

Demystifying Centralized Mail Transport and Criteria Based Routing

The_Exchange_Team on Nov 04 2021 10:58 AM
Today we wanted to cover Centralized Mail Transport (CMT) and Criteria Based Routing (CBR).
8,407

Exchange Online PowerShell v2 Module Preview – Now More Secure

The_Exchange_Team on Nov 03 2021 11:56 AM
We’re excited to let you know that we are working on a new version of the Exchange Online PowerShell v2 module, built to...
8,180

Deprecation of Mail flow features in classic Exchange admin center in WW service

The_Exchange_Team on Oct 29 2021 10:59 AM
Today, we are sharing details about the next phase of deprecation of classic Exchange admin center.
40.8K

Released: October 2021 Exchange Server Security Updates

The_Exchange_Team on Oct 12 2021 10:00 AM
We are releasing a set of security updates for Exchange Server 2013, 2016 and 2019.
35.9K

Upcoming API Deprecations in Exchange Web Services for Exchange Online

The_Exchange_Team on Oct 05 2021 10:05 AM
Today, we are announcing that we are going to remove the ability to create new Exchange Web Services apps starting Septe...
42.2K

Addressing Your Feedback on the Exchange Emergency Mitigation Service

The_Exchange_Team on Oct 01 2021 10:20 AM
We want to address some of the initial feedback we’ve received about EEMS, which we’re thrilled to say has been very pos...
72.6K

Released: September 2021 Quarterly Exchange Updates

The_Exchange_Team on Sep 28 2021 08:01 AM
Today we are announcing the availability of quarterly Cumulative Updates (CUs) for Exchange Server 2016 and Exchange Ser...
58K

New security feature in September 2021 Cumulative Update for Exchange Server

The_Exchange_Team on Sep 24 2021 11:54 AM
As part of our continued work to help you protect your Exchange Servers, in the September 2021 Cumulative Update CU we h...
125K

Basic Authentication and Exchange Online – September 2021 Update

The_Exchange_Team on Sep 23 2021 02:55 PM
Today, we are announcing that, effective October 1, 2022, we will begin to permanently disable Basic Auth in all tenants...
11.6K

New minimum Outlook for Windows version requirements for Microsoft 365 starting November 1, 2021

Nino Bilic on Sep 20 2021 07:26 AM
Please be aware of new minimum Outlook for Windows version requirements for Microsoft 365 starting November 1, 2021.
15.1K

Delay of September 2021 Cumulative Update for Exchange Server

The_Exchange_Team on Sep 17 2021 08:05 AM
We typically release Cumulative Updates (CUs) for Exchange Server on the third Tuesday of a month. In September 2021, th...
11.6K

Deprecation of the classic Exchange admin center in WW service

The_Exchange_Team on Sep 09 2021 06:42 AM
We are announcing the retirement of the classic EAC in our WW deployment, to be fully deprecated by September 30, 2022.
49K

ProxyShell vulnerabilities and your Exchange Server

The_Exchange_Team on Aug 25 2021 10:51 AM
If you have installed the May 2021 security updates or the July 2021 security updates on your Exchange servers, then you...
37.9K

New opt-in endpoint available for SMTP AUTH clients still needing legacy TLS

The_Exchange_Team on Aug 18 2021 02:11 AM
Due to significant usage, we’ve created an opt-in endpoint that legacy clients can use with TLS1.0 and TLS1.1 in our sha...
17.5K

Sender Rewriting Scheme Upcoming Changes

The_Exchange_Team on Aug 10 2021 09:12 AM
There are three upcoming changes in the service that will affect Sender Rewriting Scheme (SRS).
26.8K

How to update AD schema to address CVE-2021-34470 if Exchange is very old or no longer installed

The_Exchange_Team on Aug 05 2021 12:54 PM
In this blog post, we want to address how to update Exchange schema for CVE-2021-34470 even if Exchange is not installed...
29.3K

More about AMSI integration with Exchange Server

The_Exchange_Team on Jul 22 2021 07:00 AM
As of the June 2021 quarterly updates, Exchange Server supports integration with AMSI...
12K

Demystifying Moderation

The_Exchange_Team on Jul 20 2021 07:53 AM
Moderation is simple to setup and work with as an administrator, however if you need to troubleshoot it, you might need ...
201K

Released: July 2021 Exchange Server Security Updates

The_Exchange_Team on Jul 13 2021 10:32 AM
We are releasing a set of security updates for Exchange Server 2013, 2016 and 2019.
8,191

Google Workspace to Exchange Online migrations now support Gmail Filter to Outlook rule migration

The_Exchange_Team on Jul 06 2021 07:11 AM
We have added the capability to migrate Gmail filters to Outlook rules migration, as a part of the standard migration of...
97.5K

Released: June 2021 Quarterly Exchange Updates

The_Exchange_Team on Jun 29 2021 08:03 AM
Today we are announcing the availability of quarterly Cumulative Updates (CUs) for Exchange Server 2016 and Exchange Ser...
66.9K

Basic Authentication and Exchange Online – June 2021 Update

The_Exchange_Team on Jun 16 2021 01:08 PM
It’s been a few months since our last update on Basic Authentication in Exchange Online, but we’ve been busy getting rea...
10.1K

Did you know? Automated diagnostics are available to troubleshoot various Office 365 issues.

Nino Bilic on Jun 15 2021 11:37 AM
I wanted to share information about automated diagnostics that our customers can run inside of the Microsoft 365 admin c...
30.4K

News About the June 2021 Cumulative Update for Exchange Server

The_Exchange_Team on Jun 11 2021 08:40 AM
We typically release our quarterly CUs for Exchange Server on the third Tuesday of a month. In June 2021, that would be ...
16.3K

Migrations with Data Consistency Score (DCS) – more than you ever wanted to know!

The_Exchange_Team on May 27 2021 01:37 PM
We wanted to provide a lot of detail of what makes Data Consistency Score (DCS) Exchange Online migrations work, how to ...
16.3K

Outlook for Windows Shared Calendar Public Notifications

The_Exchange_Team on May 26 2021 01:16 PM
It is with great excitement that we are announcing that we have graduated the shared calendar improvements in Outlook fo...
10.5K

Prevent Journaling issues due to Exchange Online mailbox receiving limits

Scott Schnoll on May 13 2021 03:45 PM
As part of our continued efforts to help customers be successful with Exchange Online, Microsoft has detected that some ...
87.4K

Released: May 2021 Exchange Server Security Updates

The_Exchange_Team on May 11 2021 09:54 AM
We are releasing a set of security updates for Exchange Server 2013, 2016 and 2019.
8,306

Troubleshooting Legacy Public Folder Migration Endpoints in Office 365

The_Exchange_Team on May 06 2021 10:59 AM
In this blog post, we discuss issues when creating public folder migration endpoints for Exchange 2010 on-premises publi...

Latest Comments

Nino Bilic
in Released: November 2021 Exchange Server Security Updates on Nov 29 2021 01:48 PM
@marinvolarevic @MarcelZeb - actually, we were unable to reproduce the problem of remote shared mailboxes not being created properly after November update is installed. It seems like this might not be related; but please open a ticket with our support if you are still seeing this.
0 Likes
ValeryTyurin
in Released: November 2021 Exchange Server Security Updates on Nov 28 2021 09:21 PM
Thank you, Lukas! As I see -Secure switch also disable RSA cipher suite and leave only Eliptic Curve cipher suite.For Transition switch$script:cipherSuite['PostWin10Transition'] = @( 'TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384', 'TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256', 'TLS_ECDHE_RSA_WITH_AES_256_GCM...
0 Likes
Lukas Sassl
in Released: November 2021 Exchange Server Security Updates on Nov 28 2021 11:45 AM
@ValeryTyurin @There was an issue which was fixed with Exchange 2019 CU10 (and so, the fix is also included with CU11). See: https://support.microsoft.com/en-us/topic/cumulative-update-10-for-exchange-server-2019-kb5003612-b1434cad-3fbc-4dc3-844d-82568e8d4344 and https://support.microsoft.com/en-us/...
0 Likes
ValeryTyurin
in Released: November 2021 Exchange Server Security Updates on Nov 28 2021 11:06 AM
Hello! We installed update Exchange 2019 CU11 on Windows 2019 in our environment. In our environment we have send connectors with required TLS on number of remote domains. After CU11 was installed edge servers cannot make tls connections to some of these required tls remote domains (IronPorts ESA Ci...
0 Likes
Abdou Elmoslemany
in Released: November 2021 Exchange Server Security Updates on Nov 28 2021 06:46 AM
we have 2 DAG server exchange 2013 CU23 hybrid, a week after installing update we have reported from some users that emails which is on on perm exchange can send but not receive emails from outside organization or from cloud (o365) email inside organization. we found the outbound office 365 connecto...
0 Likes