message tracking, ping or traceroute for emails?

[chazzy2501]

Currently emails sent to just 1 school are disappearing with no errors? They don't get them and we get no delivery failure notices (Since A level results day) They've migrated to O365 so it's probably their problem but just to help how do I setup some tracerouted email?

 

both schools me and them have working email in all other aspects.