Exchange 2016
Exchange 2016 – Applying June 2023 Security update to CU23
We all know about the ongoing attacks on Exchange Servers and it is vitally important that you keep up-to-date with patching of your environments, even if it is standalone servers that are just performing management functions. Each Cumulative update (CU) and Security...
Exchange 2013/2016/2019:- Are you over exposing your server to the internet?
If you are new to Exchange, let me bring you up to speed with how attacks have increased since 2020 and Exchange servers that are published to the internet are vulnerable if not locked down. Back in the day, Admins would not patch anything because "it worked" and why...
Exchange 2016/2019 :- Apply the October 2022 Security update
The October 2022 security updates for the different Exchange versions are out and it is advisable to update your servers. In my lab, I am running different versions of Exchange servers but I updated my 2019 Exchange servers today. I added a few screenshots to show you...
Exchange 2013/2016 – Updated support for Active Directory environments
At the MEC event that recently took place, it was announced that you can now introduce Windows Server 2022 domain controllers if you are using the latest Cumulative Updates for Exchange 2013 and Exchange 2016. Below is a snippet from the supportability matrix on the...
Exchange 2013/2016/2019:- Health Checker a must have for Exchange Admins
In March 2020 when we had many Exchange servers world wide attacked, the Team at Microsoft put together a nice PowerShell script that provides plenty of output but the most important part is it gives you an overview of CVE vulnerabilities on the Exchange Server. The...
Add extra security to stop email spam by implementing DKIM
In some of my articles, I have made mention of implementing SPF, DMARC and DKIM records for your Exchange environment but many ask the question on how do you setup DKIM for Exchange 2016 or Exchange 2019? (Applies to 2013 as well). There are a couple of steps involved...
Exchange 2019:- Cannot delete Shared Mailbox in Hybrid scenario
If you are running Exchange 2016 and Hybrid or Exchange 2019 and Hybrid, generally managing items are done on-premise and then synced up to Office 365 with AD Connect. I had a Shared Mailbox that was synced to Office 365 and in the Office 365 Portal, I went to Shared...
Exchange 2016 CU22:- Additional requirements to take note of
For those familiar upgrading Exchange 2016 through the command line, you may have noticed that the command below does not work with CU22: setup /mode:Upgrade /IAcceptExchangeServerLicenseTerms There is an additional requirement that has to be done on the command line,...
Exchange 2016:- A reboot from a previous installation is pending.
I am sure many of you have come across the above error when you trying to either upgrade Exchange 2016 or Exchange 2019 and a simple reboot fixes it. However, I had a situation the other day in my lab where the above error kept coming up as seen below: The install is...
Exchange 2016:- CU21 requires a Schema Update
Microsoft released the above CU a few days ago and it comes with a new feature called AMSI, you can read all about it here: https://wwwtechcommunity.microsoft.com/t5/exchange-team-blog/news-about-the-june-2021-cumulative-update-for-exchange-server/ba-p/2437578 With...