Looks like the last 2 weeks we weren’t receiving emails because we had left our proxy on for the mail record. Today we turned it off and email is coming through again. Is there anyway to retrieve the emails that would have come in over the last 2 weeks?
Emails which (because they could not be sent) are still in queues of their original mail servers should be eventually delivered. Emails which were already dropped as undeliverable (or were never in queues) won’t be sent again.