hello.
i have a user telling me they failed to receive a "very important" email from a client, they asked me to chase up if the email went missing as a result of our exchange server.
i have checked the message tracking log in power shell Get-messagetrackinglog and also checked the delivery reports in the EAC both showing nothing.
What i want to know is, is there any other logs or things i can do to see if an email from an external sender has hit any part of my exchange infrastructure
Many Thanks