I have a query regarding the up-gradation of the Domain and Exchange server. Following is the scenario.
Primary site = AD 2012 R2 Primary Domain (migrate to 2019 DC)
Exchange 2013 with DAG (migrate to 2019 with DAG)
Branch Office = AD 2012 R2 Child Domain
Exchange 2013 with DAG
DR Site = AD 2012 R2 Additional Domain Controller (ADC) (migrate to 2019 ADC)
Exchange 2012 R2 with Primary Site (migrate 2019 with Primary Site)
The query is that one of their executives in Branch Office is using Office 2010 where they have some automation script/software installed with Outlook 2010 which is no longer supports the new version of Office.
If we upgrade/migrate primary and DR AD 2012 R2 and Exchange 2013 to AD 2019 and Exchange 2019, users in the child domain can still use the existing AD and Exchange and their Office 2010 version without any changes and will not affect their emails as primary and DR site is upgraded.
Please suggest
