Microsoft released Cumulative Update 19 for Exchange Server 2016 (KB4588884) on December 15, 2020. Also known as Exchange Server 2016 CU19. This cumulative update includes fixes for nonsecurity issues and all previously released fixes for security and nonsecurity issues. These…
An Exchange Server is already up and running in the organization. Before installing a second Exchange Server, it's good to go to the drawing board. Exchange high availability namespace design and planning is by far the most crucial task. Take…
When you sent a message, a header will apply to the message. Most don't know that the message header will tell the recipient more information than you think. For security reasons, you can remove Exchange internal hostnames and IP addresses…
Microsoft released Cumulative Update 18 for Exchange Server 2016 (KB4571788) on September 15, 2020. Also known as Exchange Server CU18. This cumulative update includes fixes for nonsecurity issues and all previously released fixes for security and nonsecurity issues. These fixes…
Today's article will show why Exchange 2016 ECP redirects to Exchange 2010 ECP after you sign in. Let's start by the beginning. You have Exchange Server 2010 running in the organization. You installed a new Exchange Server 2013/2016 in the…
How to move arbitration mailboxes in Exchange Server 2010/2013/2016/2019? I recommend you move the arbitration mailboxes to the highest Exchange Server version in the organization. If you install the same Exchange Server version, you don't have to move the arbitration…
It's June 16, 2020 and Microsoft released Cumulative Update 17 for Exchange Server 2016 (KB4556414). Also known as Exchange Server CU17. This cumulative update includes fixes for nonsecurity issues and all previously released fixes for security and nonsecurity issues. These…
How to check Let's Encrypt certificate status? Let's Encrypt is a great way to secure the Exchange Server. Our previous article explained how to install FREE Let's Encrypt certificate in Exchange Server. Now that we requested a certificate from Let's…
What to do after running the Hybrid Configuration Wizard (HCW)? After running HCW, the on-premises Exchange environment is configured with Office 365. Is there an Exchange Hybrid test plan checklist, or can we start migrating the on-premises items to Office…
How to install FREE Let's Encrypt certificate in Exchange Server? After configuring the internal and external DNS, we like to install a certificate in the Exchange Server. What is Let's Encrypt, and why is it free in the first place?…