I am migrating two clients - one to On-Prem Exchange 2019, the other M365 Hosted Exchange.
What is the process OLK uses when it imports a PST? Does it:
Import the content to the OLK OST regardless of the Exchange Server type then update the mailbox?
Import the content direct to the mailbox, then update the OLK OST?
Or is it environment dependant - e.g. Imports to OST for Exchange 365, firtect to Mailbox for On-Prem?