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Exchange 2016 CU13 introduced a few more fixes and is advisable to upgrade to it. The upgrades are generally seemless and we normally do them from command line, just easier than a GUI upgrade 🙂 Firstly, you need to ensure the following is done before hand: Reboot your system (a general rule of thumb before […]

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Exchange 2019 Upgrade to CU2 is pretty straight forward and in this example we will upgrade using the command line. Before you run the setup, I generally like to do a reboot of the server as the setup will generally fail saying there is a pending reboot. In some cases, you might have to reboot […]

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In exchange, if you have moderation on your distribution list and try and moderate a message sent to it, you might receive the following error message:  “Your message can’t be moderated because the approval system is too busy and can’t accept messages now. Please try resending your message later, or contact the recipient directly.”   The […]

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Ever reboot your servers and when you login, all looks good on the surface but when you try and do stuff well it doesn’t actually work? In this scenario exactly that. Running coexistence with Exchange 2016 and 2019 and after a reboot, all seemed good. Exchange Management Shell launched fine but the Exchange Admin Center […]

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In Exchange, whether it is Exchange 2013 or higher, you may be presented with Event ID 106 complaining that performance counters are missing or already exists etc. Here is one of many errors below: You can re-create the performance counters and it should clear that constant event from logging, here is the script: add-pssnapin Microsoft.Exchange.Management.PowerShell.Setup  […]

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In Azure, when you build Virtual Machines, you have the option to install Extensions, this may be AntiVirus etc. that you need to only license once you access your VM. What you will notice is that once you do that, you have a few certificates installed on your VM called TenantEncryptionCert. As shown below, my […]

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If you are an Admin that likes to test things like me then you tend to find small things. For example, in this exercise I was trying to install the Exchange 2019 Management tools on a Windows 2016 Server and while the error is straight forward, if you click the link it takes you to […]

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As an Exchange Admin, you are aware that Exchange relies on DNS. In your environment, ensure that your PTR records are updating correctly or you might end up with false positives as shown below: As you can see, the first 2 errors that stand out are that the Active Directory server cannot be reached, even […]

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As an Exchange Admin, the last thing you want is a DAG that is not functioning correctly. A client recently experienced a problem whereby they were trying to add another copy to a DAG and after a short period of time the following events were logged in the System Log before the seeding of the […]

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