Adding an alias to a mailbox shows the error: Error executing request. An Azure Active Directory call was made to keep object in sync between Azure Active Directory and Exchange Online. However, it failed. Detailed error message: Unable to update…
You have a DAG setup, and the mailbox database disk is getting full. However, when you try to move the mailbox database with Exchange Management Shell, you get an error that it's not allowed for replicated databases. In this article,…
Running multiple Exchange Server is what we recommend for High Availability. It will give more freedom when updating Exchange Servers, troubleshooting issues, and more. But, do you need to update Exchange Server CU at the same time on all the…
Mailbox migrations are among the most known tasks when you have an Exchange Server in the organization. Of course, there are reasons why you want to migrate mailboxes to another database. But, before you start with the batch migration mailboxes,…
How to change default mailbox language for a single user or multiple users? There are users in the organization that have a different mailbox language, and they want to change that. You can send them instructions explaining how to set…
How to test that the Exchange Server exclusions are correctly excluded from the Antivirus? We already showed how to run a PowerShell script and get the Antivirus exclusions for Exchange Server 2013/2016/2019. The script runs on the Exchange Servers, and…
What is an excellent way to check the Exchange Server before applying an Exchange Cumulative Update? Many issues can happen when you run the Exchange Cumulative Update on the Exchange Server, leaving the Exchange Server in a failed state. It's…
Are you following the course Exchange Hybrid? You know that the Exchange Hybrid firewall ports are required before going further. After that, we can run the Exchange Hybrid Wizard and start migrating mailboxes, sending, and receiving between on-premises and Office…
How to delete a mailbox in Office 365 without deleting the user? Removing the user completely means that the mailbox will be deleted, including OneDrive and SharePoint files. Instead, you want to keep the user and delete the mailbox because…
Microsoft released several Security Updates (SUs) for Microsoft Exchange Server to address vulnerabilities. Due to the critical nature of these vulnerabilities, we recommend that customers apply the updates to affected systems immediately to protect the environment. Note: These vulnerabilities affect…