A couple of weeks ago we made a few changes to our e-mail policies and security preferences. In particular, we made changes to our anti-spoofing policy which seems to have had a knock-on effect on our internal Freshdesk mails.

A few users reported issues with certain mails not sending, but most of them seemed to be sending fine. 

It was only a few days later that we realised it was any Freshdesk > Internal address that wasn't working, we have fixed the problem but need to identify all of the tickets which have failed e-mails associated with them. So far I've not managed to figure out a way of doing this - can anybody help?