Background The Exchange Store Driver is a core transport component which lives both on the Mailbox server role (as the mail submission service) and the Hub server role. It is responsible for: ...
Updated Jul 01, 2019
Version 2.0
Blog Post
Could you please explain whether the mail submission service of MB server moves a message from Outbox to the queue of HT server or just sends a notification to HT and then HT's Store Driver extracts the message? Different sources provide different answers :-( Ex2007 documentation was less ambiguous at this point