Troubleshoot Missing Emails

Login to Office365 portal as administrative user.    

 

 

 Click on Admin   

 

 

 

 

 

 

 

 Click on "… Show All"   

 

 

 

 

 

 

 

 Click on Security & Compliance   

 

 

 

 

 

 

 

 Click through the following   

 

 

 

 

 Mail Flow   

 

 

 Message Trace   

 

 

 The Down arrow next to "Default Queries"   

 

 

 "Messages received by my primary domain in the last day"   

 

 

 

 

 

 

   

 

 

 

 Fill out the necessary information to try and locate the emails and click search.   

 

 

 If you see the messages here it will give you a status of them.   

 

 

 If you do not see the message here it is a decent indication that it was:   

 

 

 Blocked by a spam filter before reaching O365 (via Barracuda or other service)   

 

 

 Blocked by a server on the sender's side.