You can easily get the Exchange version for all Exchange servers in your domain with this one-liner. Run it from an Exchange Management Shell.
Get-ExchangeServer | Select Name,AdminDisplayVersion,Edition,ServerRole
The following information is displayed:
Name : | the server name |
AdminDisplayVersion : | the version and build of the server You can cross-reference this with the Exchange version matrix to find out which updates are installed. |
Edition : | can be Standard or Enterprise |
ServerRole : | the roles on the server specified by Name |