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Tag: Exchange 2016

In your Exchange 2016 environment, you might have noticed the following Event (Event ID 9646) being logged: Mapi session (redacted) with client type MoMT exceeded the maximum of 32 objects of type Session To resolve this issue, you can create a registry key on the server and then restart the Exchange Information Store. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem\Maximum Allowed […]

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On your Exchange 2013 Server, you may be wondering where all the space is going to, many Exchange Admins are not sure where to find the culprit, so I have put together a small script to list the 4 directories as mentioned below. The Script has 5 buttons, the bottom one called Get Directory Size […]

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If you are running Exchange 2013 or Exchange 2016, sometimes admins make changes to groups and after the topology refresh, you login to the EAC and come across the following error when you click on the Organization Management Group and you notice you cannot perform your daily admin tasks: You can’t copy this role group […]

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In your Exchange 2016 environment, if you have upgraded to Exchange 2016 CU8 or have done a fresh install of CU8, you might notice that Event ID 6003 is logged on the server, here is the error: “UAPErrorLog: Failed to create the log directory: D:\ActivityLogs\UAPErrorLog because of the error: Could not find a part of […]

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Recently a customer contacted us as they were having an issue. When setting the forwarding option on a mailbox in there Exchange 2016 RTM environment, it simply was not applying. We advised the customer to rather use the Exchange Management Shell and firstly check if the property was set but after checking, the field was […]

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As an Exchange Admin, you probably receive requests to set forwarding on a mailbox. This could be for many reasons, but somewhere down the line, you get a request to provide all forwarders for a domain or for a mailbox. To view the forwarders, you need to launch the Exchange Management Shell (EMS) and run […]

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In your Exchange 2016 environment, you might have noticed that you are getting a lot of errors logged in the application log regarding PowerShell.exe, here is the error message: Event 4127, MSExchange ADAccess Process powershell.exe (PID=11952). Component: Microsoft.Exchange.Data.Directory.ConfigurationSettingsADNotificationException: Error running AD operation. —> Microsoft.Exchange.Data.Directory.ADTopologyUnexpectedException: Unexpected error when calling the Microsoft Exchange Active Directory Topology service […]

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In Exchange 2016 when you try and access OWA or the Exchange Admin Center (EAC), you might be presented with the following error: The webpage at https://mail.domain.local/owa might be temporarily down or it may have moved permanently to a new web address. ERR_SPDY_INADEQUATE_TRANSPORT_SECURITY This is due to a cipher and/or hash issue and can be resolved with […]

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Tip of the day!! In you Exchange environment you may have noticed that you are sitting with a 2GB Temp Folder after a CU has been installed. This is normal if you install a CU. You can go ahead and remove the ExchangeSetup folder in this location: %systemRoot%\Temp\ExchangeSetup but do take note that it will be […]

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Quick Tip: Your IT manager wants to know what Exchange 2016 version the company is running, to do this you could run the following command: Get-ExchangeServer | Format-List Name, Edition, AdminDisplayVersion You can compare the build number to the TechNet article below to see what CU you are running: Exchange Server Updates You could also […]

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In this short post, we will look at preventing a CAS server from proxying traffic. Let’s suppose you are migrating from Exchange 2010 to 2013 or even 2016 and you do not want your Exchange 2010 Server/s to act as a proxy target. You could run the following command to enable this: Set-ClientAccessServer –identity CASServer1 […]

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As an Exchange Admin, everything is running well and you come into the office and you have a ton of calls logged by users who cannot send/forward or reply to emails on OWA. You think hard about any changes that have been made, and well, none have. You take a look at one of the […]

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This is an interesting topic. Outlook Web App Policies for Exchange 2016. This “feature” configures the ability to Allow or Block features within the default policy for all users or you can create a custom one to assign to individual mailboxes. Let’s take a step back and think about this. In most organizations, you have […]

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In any Exchange Environment, your users will create Inbox Rules on there mailboxes. For them it is like a filing system, Email X goes here and Email Y goes there. In my previous post we looked at the Rules Quota on a mailbox. If you would like to see what rules have been created on […]

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As an Exchange Admin, you might have your saved list of commands you use on a daily or weekly basis. I would like to share my Top 10 list of commands used in Exchange, as some of the environments worked on are massive, these might not be your Top 10 but you can add them […]

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In Exchange 2016, you do not have all the roles like in Exchange 2010 and Exchange 2013. You only have 2 roles, the Mailbox Role and the Edge Transport role. You might be wondering how mail flows within Exchange 2016. Let’s take a look: The Mailbox server role has three transport services called the transport pipeline, take […]

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In this tutorial, we will be looking at installing Exchange 2016 CU7 on Windows Server 2016. Take note that you can install Exchange 2016 CU3 and up on Windows Server 2016. Prior versions of Exchange 2016 can be installed on Windows Server 2012 and 2012 R2. We will cover the following steps: **Take Note, you […]

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Many times the question has been asked, can I not add my Exchange 2010 Server to my Exchange 2013 DAG or my Exchange 2013 Server to my Exchange 2016 DAG. Well, the answer is No you cannot. Let me explain why. Firstly, your Exchange 2010 Servers are probably running on Windows Server 2008 R2 Enterprise […]

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In Exchange, be it Exchange 2010, Exchange 2013 or Exchange 2016, you might have come across back pressure alerts or where Exchange just won’t function. These include: Disk space Memory These in turn log different event logs, you might see the following Event ID’s logged in the application log: 15004 15006 If we take a […]

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In Exchange, whether it is Exchange 2010, Exchange 2013 or Exchange 2016, there is always some sort of confusion when it comes to deleting or disabling a user mailbox. While one will leave the account in tact and disconnect the mailbox, the other one will remove the account and mailbox. Here is an explanation of […]

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