The default external postmaster address is set to the default accepted domain. What if you want to change the external postmaster address or check that everything is in place? In this article, you will learn how to configure the postmaster…
We have to offboard a mailbox from Exchange Online to Exchange on-premises. After following the steps, we get a mailbox move failure at the end, and the mailbox will not complete. Why is the mailbox move failing, and what is…
Outgoing mail stays in the Exchange Server mail queue and is not delivered. What's going on? The incoming mail flows, but outgoing mail doesn't. The mail needs to flow to the outside world, and we can't have this delay. Let's…
We can't create a mailbox in Exchange Server, and it shows the error: Load balancing failed to find a valid mailbox database. We didn't change anything, and this error occured. Why is this happening, and what is the solution? Table…
The Exchange mailbox database keeps dismounting, and when we like to mount the database, it's unable to mount. After repairing the Exchange database and mounting, we did look at the event logs for errors. That's because we like to prevent…
The Microsoft Exchange certificate is installed when you install an Exchange Server, and it's 5 years active. Most of the time, you don't look into that certificate because, within 5 years, you will have a new Exchange Server and decommission…
We like to remove Windows Defender Antivirus exclusions. The problem is that there are a lot of exclusions, and when we go to the Microsoft virus & threat protection settings, it takes a lot of time to remove them manually.…
We have two security groups in Active Directory, and we want to compare the members in both of these groups. What is the quickest way to compare AD group members and export the results? In this article, you will learn…
There is a difference when you want to uninstall the last Exchange Server on-premises or when you want to uninstall one Exchange Server. Also, when should you remove the last Exchange Server in the organization? In this article, we will…
We want to export Azure AD users information to CSV with PowerShell. Why do we need to list the Azure AD users with PowerShell? For example, we want to know if every Azure AD user has the correct attributes in…