Office 365 Pilot Group Mail Flow Issues

When initially deploying and configuring Office 365, one of the initial questions is to select the on-premises objects which will be replicated to Azure Active Directory.  It is strongly recommended that all of the required directory and user hygiene is fully completed prior to the installation of Azure AD Connect.  It is easier and simpler…

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Exchange 2016 CU7 AD Forest Function Level Requirements

In September 2016, just over a year ago from the time of writing, Exchange 2016 CU3 added support for Windows 2016.  Exchange 2016 CU3 added support for installing Exchange 2016 onto Windows Server 2016 and also to have Windows 2016 Domain Controllers (DCs) in the environment.  There is a nuance with the latter.  In order…

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How To Compare Exchange Schema Changes

In the initial versions of Exchange, there was no Active Directory.  In this land before time, Windows NT directory services was available and Primary Domain Controllers and Backup Domain Controllers ruled the roost.  Exchange 4.0 to 5.5 maintained a separate directory in Exchange over and above the Windows NT directory.  This all changed with the…

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Exchange 2016 CU7 Released

Exchange 2016 CU7 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…

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July 2017 Exchange Security Updates–Have You Updated?

Patch Tuesday this month featured updates to address security issues in Exchange 2010, 2013 and 2016.   Two weeks ago today, July 11th heralded the arrival of Rollup Update Rollup 18 (RU18) for Exchange Server 2010 Service Pack 3 along with updates for Exchange 2013 and 2016. Exchange 2010 SP3 RU18 is the latest rollup…

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Script To Check Exchange NTFS Cluster Size

An issue came to light when onsite recently with a customer.  The design specifications from the Exchange team were not being correctly implemented.  In this environment there is a separate Windows team who are responsible for managing the underlying server OS and hardware.  They are to follow the prescribed process and steps laid down by…

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Exchange 2016 CU6 Released

Exchange 2016 CU6 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…

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Exchange 2016 RecoverServer

There have been many great improvements to the Exchange Server installation process in recent years.  Exchange 2010 gave us the ability to perform incremental deployment, where all mailbox servers start off as a regular mailbox server and then we can add it to a Database Availability Group (DAG).  Exchange 2007 introduced the ability to run…

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Exchange 2016 Upgrades–The Point Of No Return

When designing an upgrade strategy from an older version of Exchange to a newer one, a question that needs to be addressed is do we need to introduce a version of Exchange that may not currently be present?  This may be when upgrading from Exchange 2010 to Exchange 2016.  If that organisation currently does not…

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Unexpected Exchange AD Object Values

Imagine this scenario; you have deployed an Exchange 2013 or Exchange 2016 Cumulative update successfully in your environment and you think that all is fine.  However you then receive an unpleasant surprise when you go to verify the details of the Exchange Schema and Exchange AD object versions.  You can review the process to review…

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