I have 2 x Exchange 2016 servers (running on Windows Server 2016) with a single DAG containing 2 databases. I also have a File Share Witness configured on a 3rd server running Windows Server 2016. This has been working perfectly…
I have been troubleshooting an issue where mail was reaching our Exchange servers for non-existent recipients (it passes through a Sophos UTM first). I discovered that there is a way of having Exchange validate the recipient and this is done…
We have a hybrid Exchange environment and all of our meeting room calendars are hosted in Exchange 2016 on-premise. The users that we have migrated to Exchange Online are able to see the calendars in the rooms list but receive…
After migrating a user mailbox to Exchange Online (from Exchange 2016) the user could no longer access some shared mailboxes that are still hosted on-premise in Exchange 2016 (permissions are fine, they could access them prior to being migrated). When…
After migrating a user mailbox to Exchange Online (from Exchange 2016) the user could no longer access their mailbox in Outlook, it gave no error just behaved as if it was offline. I tried removing the profile and creating it…
While working with an Exchange hybrid environment (Exchange 2016 on-premise and Exchange Online) it became apparent that some users had two mailboxes; one on-premise and one in Exchange Online. Their primary mailbox was in the on-premise environment, the one online…
While trying to migrate a mailbox from Exchange 2016 on-premise to Exchange Online using the New-MoveRequest cmdlet it failed and returned this message: You can’t use the domain because it’s not an accepted domain for your organization While checking the…
When patching an Exchange 2016 server that is a member of a DAG (Database Availability Group) it is best to put the server into maintenance mode before doing so. This is easily done using a few PowerShell cmdlets: Drain the…
Our ServiceDesk application collects mail from a single mailbox in our Exchange 2016 on-premise environment (servicedesk@ourdomain.com). Mail is also sent to several other mailboxes and forwarded on to the ServiceDesk mailbox (mainly for different languages). A number of users have…
I am working on an Exchange 2016 environment in a lab (using a SureBackup job in Veeam Backup & Replication) and not all of the servers are present in the lab. Therefore, I need to remove one of the mailbox…