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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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 2013 CU18 Released

Exchange 2013 CU18 has been released to the Microsoft download centre!  Exchange 2013 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 2013 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 2013 CU17 Released

Exchange 2013 CU17 has been released to the Microsoft download centre!  Exchange 2013 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 2013 and can be used to install a fresh server or to…

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Exchange Setup – Certificate Is Expired

The below is one of my Exchange 2013 lab servers which ran into an error when upgrading to Exchange 2013 CU13.  This was because I had deliberately broken Outlook Anywhere in order to replicate a customer situation where they had let the Outlook Anywhere certificate expire.    When running the CU upgrade process, setup failed when…

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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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Exchange 2013 CU16 and Exchange 2016 CU5 .NET Framework Requirement

As mentioned in the release posts for Exchange 2013 CU16 and Exchange 2016 CU5, both of these Exchange versions now require .NET framework 4.6.2 on all supported OS platforms.  This post focusses on Windows 2012 and 2012 R2 installations, see note below about Windows 2016. Exchange setup will check for the presence of the required…

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Exchange 2013 CU16 Released

Exchange 2013 CU16 has been released to the Microsoft download centre!  Exchange 2013 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 2013 and can be used to install a fresh server or to…

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