Exchange Team Blog

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The_Exchange_Team on 04-13-2021 10:01 AM

We are releasing a set of security updates for Exchange Server 2013, 2016 and 2019.

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The_Exchange_Team on 04-02-2021 06:20 AM

We know that some of our customers leverage Exchange transport rules to prepend subject line or insert the message body ...

5,489

The_Exchange_Team on 03-25-2021 07:20 AM

Email distribution groups (DGs) are great for easily sharing information or engaging in discussions with a large group o...

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The_Exchange_Team on 03-16-2021 09:00 AM

Today we are announcing the availability of quarterly servicing cumulative updates (CUs) for Exchange Server 2016 and Ex...

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The_Exchange_Team on 03-08-2021 06:41 PM

To help customers more quickly protect their environments in light of the March 2021 Exchange Server Security Updates, M...

710K

The_Exchange_Team on 03-02-2021 01:08 PM

We are releasing a set of out of band security updates for Exchange Server.

13.8K

The_Exchange_Team on 02-25-2021 10:14 AM

We would like to have Exchange Online customers (who would like to participate in a preview program) help us improve the...

18.7K

The_Exchange_Team on 02-22-2021 07:03 AM

To ensure optimal mail flow performance for all customers and protect the health of Exchange services, Microsoft is upda...

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The_Exchange_Team on 02-11-2021 07:26 AM

At Microsoft Ignite 2020, we announced the preview of support for Linux and Windows PowerShell Core in Exchange Online m...

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The_Exchange_Team on 02-04-2021 09:00 AM

We previously announced we would begin to disable Basic Auth for five Exchange Online protocols in the second half of 20...

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The_Exchange_Team on 02-03-2021 08:10 AM

A redirect URI, or Reply-URL, is where an authorization server sends a user once their app has been successfully authori...

9,554

The_Exchange_Team on 02-02-2021 08:56 AM

Administrators who want to limit the app access to a specific set of mailboxes can create an application access policy. ...

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The_Exchange_Team on 01-22-2021 03:03 PM

Microsoft periodically refreshes certificates in Office 365 as part of our effort to maintain a highly available and sec...

7,461

The_Exchange_Team on 01-21-2021 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...

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The_Exchange_Team on 01-19-2021 08:50 AM

It is important for administrators to know of all mailboxes that have forwarding enabled and where the mail is been forw...

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The_Exchange_Team on 01-15-2021 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...

7,551

The_Exchange_Team on 01-11-2021 01:32 PM

In Exchange Online we automatically perform certain public folder mailbox management so you may focus your time managing...

70.8K

The_Exchange_Team on 12-15-2020 08:37 AM

Today we are announcing the availability of quarterly servicing cumulative updates for Exchange Server 2016 and 2019.

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The_Exchange_Team on 11-19-2020 10:33 AM

We wanted to share some best practices to prepare the on-premises public folders for migration to Exchange Online

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The_Exchange_Team on 11-17-2020 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...

14.7K

The_Exchange_Team on 10-29-2020 09:23 AM

In this installment of the migration troubleshooting series, we will talk about migrations that are 'Completed with warn...

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The_Exchange_Team on 10-27-2020 12:59 PM

As was announced at Microsoft Ignite 2020, support for plus addressing is now available in Exchange Online. Thanks to ou...

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The_Exchange_Team on 10-22-2020 11:34 PM

Microsoft is updating Azure services to use TLS certificates from a different set of Root Certificate Authorities (CAs)....

21.9K

The_Exchange_Team on 10-19-2020 07:37 AM

In this part of migration troubleshooting series, we will talk about ‘slow’ migrations (and how to define when a migrati...

10.6K

The_Exchange_Team on 10-16-2020 11:16 AM

Virtual desktop infrastructure (VDI) is defined as the hosting of desktop environments on a central server. It is a form...

12.1K

The_Exchange_Team on 10-07-2020 06:32 AM

We're thrilled to announce that our Microsoft Remote Connectivity Analyzer - Office 365 tests now have modern authentica...

16.4K

The_Exchange_Team on 10-05-2020 11:34 AM

Continuing our hybrid migration blog post series, we arrived at troubleshooting failed migrations.

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The_Exchange_Team on 09-22-2020 08:01 AM

Lots of Exchange related news announced today at Microsoft Ignite 2020.

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The_Exchange_Team on 09-22-2020 08:00 AM

When Microsoft Ignite 2020 become a digital event we took it as an opportunity to think about the sessions and subjects ...

9,269

The_Exchange_Team on 09-22-2020 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...

Latest Comments

in Released: April 2021 Exchange Server Security Updates on 04-16-2021

Hi @Nino Bilic . I installed the update via Windows Updates. Looking through the logs now, I had the following 3 updates to be installed. KB5001382, KB890830 and KB5001779 . All 3 were installed successfully, but when I rebooted and logged back in, the troubles began. Looking back in Exchange logs i...

0 Likes

in Released: April 2021 Exchange Server Security Updates on 04-16-2021

@Lyle Epstein - great that you were able to solve this problem! Can you share how you installed the update? Was it installed via Microsoft Update (MU) or a manual install and if manually, di you just double-click on the .msp file after download or did you run it from the elevated CMD prompt?

0 Likes

in Released: April 2021 Exchange Server Security Updates on 04-16-2021

Sorry for the repeat post, I was on Exchange 15.1.2176.2 (CU19) which then broke. I downloaded Exchange CU20 and installed. This still did not resolve. Digging through the event log, I found repeatedly event ID 15021 HttpEvent, An error occurred while using SSL configuration for endpoint 0.0.0.0:444...

0 Likes

in Released: April 2021 Exchange Server Security Updates on 04-16-2021

After installing this patch on Windows Server 2012R2 with Exchange 2016 CU20 with March update, OWA, ECP I do get the login prompt, but after entering admin creds I get HTTP ERROR 503, along with Exchange Management Shell Powershell being broken, mail flow is now effected. All services seem to be up...

0 Likes

in Released: April 2021 Exchange Server Security Updates on 04-16-2021

@Nino Bilic thanks for the link and the explanation. i will look into it.

0 Likes