Below is their email to me. So, I think it best to use 1953EDT 07SEP14 as a baseline. If nothing else comes through, then the second part of the matter is resolved. The first part is not of my affair as I no longer utilize the plugin so it is moot to me.
Thank you for responding and giving some suggestions to issues. If nothing else perks through, I would believe that the issue is resolved.
I have double checked the server mail queue and I can confirm that there are no emails waiting to be sent from your account. However it is entirely possible that some emails might have been kept in the outgoing queue and they might have been delivered after the reported plugin removal.
However as the queue is clear now there should be no such future emails generated from your WordPress website.