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Unable to Prepare Schema For Exchange Server 2019–Forest Functional Level

Posted on 16th September 2021 by Rhoderick Milne [MSFT]

Imagine that you have spent weeks planning for your upgrade to Exchange 2019. There are no unsupported down-level versions of Exchange, only Exchange 2016 is present. Those pesky public folders were also taken out behind the farmer's shed never to return. That only taken 15 or so years, but hey life is a journey...

Imagine your surprise when you go to perform step #1 which is extending the… Read the rest “Unable to Prepare Schema For Exchange Server 2019–Forest Functional Level”

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Exchange 2019 CU10 Released

Posted on 29th June 2021 by Rhoderick Milne [MSFT]

Exchange 2019 CU10 has been released to the Microsoft Volume Licensing Center and the public Microsoft Download site! Exchange 2019 has a different servicing strategy than Exchange 2007/2010 and utilises Cumulative Updates (CUs) rather than the Rollup Updates (RU/UR) which were used previously. CUs are a complete installation of Exchange 2019 and can be used to install a fresh server or to upd… Read the rest “Exchange 2019 CU10 Released”

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Exchange 2016 CU21 Released

Posted on 29th June 2021 by Rhoderick Milne [MSFT]

Exchange 2016 CU21 has been released to the Microsoft download centre! Exchange 2016 has a different servicing strategy than Exchange 2007/2010 and utilises Cumulative Updates (CUs) rather than the Rollup Updates (RU/UR) which were used previously. CUs are a complete installation of Exchange 2016 and can be used to install a fresh server or to update a previously installed one. Exchange 2013 h… Read the rest “Exchange 2016 CU21 Released”

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Remote Desktop Connection Manager Download (RDCMan) 2.81

Posted on 24th June 2021 by Rhoderick Milne [MSFT]

Finally we have good news for all fans of the Remote Desktop Connection Manager (RDCMan) tool! It has risen from the ashes, and is now part of Sysinternals.

Over the years RDCMan built up a strong user base as it was a simple but powerful utility to manage connections to multiple machines. Sure, if you have three or four servers to manage you can get by with saved .rdp files or use the Universa… Read the rest “Remote Desktop Connection Manager Download (RDCMan) 2.81”

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Exchange Online App-Only Authentication Error AADSTS70011 Invalid Scope

Posted on 17th May 2021 by Rhoderick Milne [MSFT]

As more people are starting to use the Exchange Online V2 module (yay!), there are some new and different issues appearing.

In this case, the command to connect to the tenant was failing when App-Only authentication was used. A certificate was installed onto the machine where PowerShell was running.

The command used is shown followed by a glorious error.

Error Acquiring Token:
System.Exception:… Read the rest “Exchange Online App-Only Authentication Error AADSTS70011 Invalid Scope”

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Does Exchange Setup Automatically Run PrepareSchema?

Posted on 13th May 2021 by Rhoderick Milne [MSFT]

The question "Does Exchange setup automatically run /PrepareSchema?" was something that came up many times in the recent Hafnium remediation activities. This was due to many customers not updating Exchange for multiple years, and being extremely behind on updates. In order to get Exchange updated, it was necessary to perform multiple steps in the upgrade process. Sometimes the /PrepareSchema ta… Read the rest “Does Exchange Setup Automatically Run PrepareSchema?”

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TenantOrganizationConfig Required When Preparing Active Directory

Posted on 10th May 2021 by Rhoderick Milne [MSFT]

When running /PrepareSchema in an Exchange organisation with an existing Exchange Hybrid deployment you may run into an error which states:

"A hybrid deployment with Office 365 has been detected. Please ensure that you are running setup with the /TenantOrganizationConfig switch"

This is shown below:

A similar issue will occur if you specify only /PrepareAD

Note that the /TenantOrganizationConfig switc… Read the rest “TenantOrganizationConfig Required When Preparing Active Directory”

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Unable to Run Exchange Setup–Pending Reboot From a Previous Installation

Posted on 3rd May 2021 by Rhoderick Milne [MSFT]

When installing Exchange updates, I place the server into maintenance mode and restart it prior to installing the actual Exchange update. This is due to have being burned many times by other teams or third party tools that conveniently "overlooked" the fact that their setup required the machine to restart. It also provides an opportunity for issues caused by those third party tools to surface be… Read the rest “Unable to Run Exchange Setup–Pending Reboot From a Previous Installation”

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Exchange Managed Availability State Unknown

Posted on 30th April 2021 by Rhoderick Milne [MSFT]

The below is one of the cases where the "Zen of Exchange Management" is what fixes the issue. I've been know to say that sometimes you just need to wait for Exchange to do what it needs to do. To pass the time, feel free to adopt a meditation pose and emit calm and peaceful humming noises. This is Zen.

Exchange Managed Availability Reports Status: Unknown

After remediating multiple other i… Read the rest “Exchange Managed Availability State Unknown”

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Exchange 2016 CU20 PrepareAD Required

Posted on 28th April 2021 by Rhoderick Milne [MSFT]

This is a quick heads up for those who may be deploying Exchange 2016 in the near future. If you are currently on Exchange 2016 CU19 there are no AD schema changes required, but there are AD changes. The former is performed by /PrepareSchema, and the latter by /PrepareAD.

You can take a look at the history of Exchange 2016 schema changes in Active Directory schema changes in Exchange Server and th… Read the rest “Exchange 2016 CU20 PrepareAD Required”