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Exchange Team Blog

You Had Me at EHLO..

  • 1,891 Blog Articles
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50.4K

Native external sender callouts on email in Outlook

The_Exchange_Team on Apr 02 2021 06:20 AM
We know that some of our customers leverage Exchange transport rules to prepend subject line or insert the message body ...
9,479

Block BCC Messages to Distribution Groups in Exchange Online

The_Exchange_Team on Mar 25 2021 07:20 AM
Email distribution groups (DGs) are great for easily sharing information or engaging in discussions with a large group o...
72.9K

Released: March 2021 Quarterly Exchange Updates

The_Exchange_Team on Mar 16 2021 09:00 AM
Today we are announcing the availability of quarterly servicing cumulative updates (CUs) for Exchange Server 2016 and Ex...
175K

March 2021 Exchange Server Security Updates for older Cumulative Updates of Exchange Server

The_Exchange_Team on Mar 08 2021 06:41 PM
To help customers more quickly protect their environments in light of the March 2021 Exchange Server Security Updates, M...
793K

Released: March 2021 Exchange Server Security Updates

The_Exchange_Team on Mar 02 2021 01:08 PM
We are releasing a set of out of band security updates for Exchange Server.
14.7K

Help us scale public folder hierarchy in Exchange Online

The_Exchange_Team on Feb 25 2021 10:14 AM
We would like to have Exchange Online customers (who would like to participate in a preview program) help us improve the...
25.8K

Upcoming changes to mailbox receiving limits: Hot Recipients Throttling

The_Exchange_Team on Feb 22 2021 07:03 AM
To ensure optimal mail flow performance for all customers and protect the health of Exchange services, Microsoft is upda...
12.8K

EXO V2 PowerShell module is now Generally Available on Linux & macOS

The_Exchange_Team on Feb 11 2021 07:26 AM
At Microsoft Ignite 2020, we announced the preview of support for Linux and Windows PowerShell Core in Exchange Online m...
130K

Basic Authentication and Exchange Online – February 2021 Update

The_Exchange_Team on Feb 04 2021 09:00 AM
We previously announced we would begin to disable Basic Auth for five Exchange Online protocols in the second half of 20...
14.5K

Changes to the Reply-URL List in Exchange Online PowerShell

The_Exchange_Team on Feb 03 2021 08:10 AM
A redirect URI, or Reply-URL, is where an authorization server sends a user once their app has been successfully authori...
13.7K

Application Access Policy Support in EWS

The_Exchange_Team on Feb 02 2021 08:56 AM
Administrators who want to limit the app access to a specific set of mailboxes can create an application access policy. ...
16K

Keep your Federation Trust up-to-date

The_Exchange_Team on Jan 22 2021 03:03 PM
Microsoft periodically refreshes certificates in Office 365 as part of our effort to maintain a highly available and sec...
8,127

Groups in new Exchange Admin Center (EAC) brings performance and ease of discoverability

The_Exchange_Team on Jan 21 2021 11:37 AM
Continuing on our path to release the new EAC, we wanted to tell you that the Groups feature is now available and what t...
37.8K

All you need to know about automatic email forwarding in Exchange Online

The_Exchange_Team on Jan 19 2021 08:50 AM
It is important for administrators to know of all mailboxes that have forwarding enabled and where the mail is been forw...
16.7K

Understanding email scenarios if TLS versions cannot be agreed on with Exchange Online

The_Exchange_Team on Jan 15 2021 09:23 AM
With the deprecation and disablement of TLS 1.0/1.1. we thought to share some information on what behaviors you might se...
10.5K

How Exchange Online automatically cares for your public folder mailboxes (via AutoSplit)

The_Exchange_Team on Jan 11 2021 01:32 PM
In Exchange Online we automatically perform certain public folder mailbox management so you may focus your time managing...
75.1K

Released: December 2020 Quarterly Exchange Updates

The_Exchange_Team on Dec 15 2020 08:37 AM
Today we are announcing the availability of quarterly servicing cumulative updates for Exchange Server 2016 and 2019.
17.1K

Best practices for public folder preparation before migrations

The_Exchange_Team on Nov 19 2020 10:33 AM
We wanted to share some best practices to prepare the on-premises public folders for migration to Exchange Online
12.2K

Outlook REST API beta and Outlook REST API v2.0 Deprecation Notice

The_Exchange_Team on Nov 17 2020 03:29 PM
Today we are announcing the deprecation of the Outlook REST API beta and Outlook REST API v2.0 and that they will be dec...
17.9K

What to do if a migration is Completed With Warnings

The_Exchange_Team on Oct 29 2020 09:23 AM
In this installment of the migration troubleshooting series, we will talk about migrations that are 'Completed with warn...
26.3K

Plus Addressing Now Available in Exchange Online

The_Exchange_Team on Oct 27 2020 12:59 PM
As was announced at Microsoft Ignite 2020, support for plus addressing is now available in Exchange Online. Thanks to ou...
13K

Hybrid Agent and Root Certificate Changes

The_Exchange_Team on Oct 22 2020 11:34 PM
Microsoft is updating Azure services to use TLS certificates from a different set of Root Certificate Authorities (CAs)....
30.2K

Troubleshooting Slow Migrations

The_Exchange_Team on Oct 19 2020 07:37 AM
In this part of migration troubleshooting series, we will talk about ‘slow’ migrations (and how to define when a migrati...
12.3K

Troubleshooting auth issues in Outlook if you are Azure joining non-persistent Virtual Desktop

The_Exchange_Team on Oct 16 2020 11:16 AM
Virtual desktop infrastructure (VDI) is defined as the hosting of desktop environments on a central server. It is a form...
12.5K

Modern Authentication Support comes to Microsoft Remote Connectivity Analyzer

The_Exchange_Team on Oct 07 2020 06:32 AM
We're thrilled to announce that our Microsoft Remote Connectivity Analyzer - Office 365 tests now have modern authentica...
24K

Troubleshooting Failed Migrations

The_Exchange_Team on Oct 05 2020 11:34 AM
Continuing our hybrid migration blog post series, we arrived at troubleshooting failed migrations.
136K

Exchange News and Announcements – Microsoft Ignite 2020 Edition

The_Exchange_Team on Sep 22 2020 08:01 AM
Lots of Exchange related news announced today at Microsoft Ignite 2020.
9,777

Setting Up for Success With Exchange Online – A Video Series

The_Exchange_Team on Sep 22 2020 08:00 AM
When Microsoft Ignite 2020 become a digital event we took it as an opportunity to think about the sessions and subjects ...
9,844

Mailbox Protection with Microsoft 365 – The Video Series

The_Exchange_Team on Sep 22 2020 08:00 AM
Email and time management seems pretty simple, doesn’t it? How do you know what’s really happening as messages pass from...
19.5K

Exchange Online Admin News at Microsoft Ignite 2020

The_Exchange_Team on Sep 22 2020 08:00 AM
Today we are announcing several new features and capabilities to help Exchange admins become more efficient and achieve ...

Latest Comments

bellylaugh
in New security feature in September 2021 Cumulative Update for Exchange Server on Sep 28 2021 07:48 AM
Agreed @PatchesOhoulihan14 , here's a good semi-recent example. During Hafnium back in March, interim mitigations included: Interim mitigations if unable to patch Exchange Server 2013, 2016, and 2019:Implement an IIS Re-Write Rule to filter malicious https requestsDisable Unified Messaging (UM)Disab...
0 Likes
DBASQL775
in Basic Authentication and Exchange Online – September 2021 Update on Sep 28 2021 07:07 AM
@MichaelN645 The blog mentions SMTP several times. We're not turning it off for those that still need to use it, and even if we do, you can turn it back on. SMTP is the exception (there's always one isn't there). Read the blog and FAQs again... It also says at the end of 2022 basic auth will be disa...
0 Likes
Greg Taylor - EXCHANGE
in Basic Authentication and Exchange Online – September 2021 Update on Sep 28 2021 07:01 AM
@MichaelN645 The blog mentions SMTP several times. We're not turning it off for those that still need to use it, and even if we do, you can turn it back on. SMTP is the exception (there's always one isn't there). Read the blog and FAQs again... @Tony Redmond did a nice blog on the SMTP aspects - SMT...
0 Likes
MichaelN645
in Basic Authentication and Exchange Online – September 2021 Update on Sep 28 2021 06:58 AM
@Greg Taylor - EXCHANGE "...uses SMTP, so if it really only does send, you should be good." Okay, now I'm confused -- I thought authenticated SMTP was going away since it falls under Basic Auth?
0 Likes
PatchesOhoulihan14
in New security feature in September 2021 Cumulative Update for Exchange Server on Sep 28 2021 06:50 AM
If a zero-day vulnerability is detected and mitigations are applied before the release of an SU, am I under the impression that my Exchange environment has the potential to have its services disrupted until an SU is properly released? I understand that the mitigations and be reverted manually at any...
0 Likes