Email Security

Good morning everyone and happy new year.
Although the new year doesn't seem to be starting off so well.

All of my onpremise exchange servers are not receiving or sending email (aside from a few rare spotty exceptions).
Every mail server I have in the infrastructure uses Email Security as an antispam (active control both inbound and outbound). I don't really know what to do, I've opened a ticket to sophos but of course the business emails don't work either. Does anyone else have the same problem?

Thank you