Exchange Sizing Calculator still supports mail.que database over 2 TB in Exchange Server 2019

Applies to: Exchange Server 2019


Microsoft Exchange Server 2019 Sizing Calculator produces unsupportable results for mail.que database size without generating an error or warning message. The mail.que database that exceeds 2 TB is still supported.


To fix this issue, install the Cumulative Update 5 for Exchange Server 2019 or a later cumulative update for Exchange Server 2019.


Learn about the terminology that Microsoft uses to describe software updates.