A user informed me that they are missing email that a customer sent today but they never recieved. I checked the spam filter (email gatway) from Double Check and it shows a log of the message. It was sent to two people inside the company twice. So, I have for entries for today. I checked the journal mailbox that would have a copy of all mail in and out of the company. They are not in the journal nor the user mailbox. I checked the message cue on exchange and there is nothing pending delivery. I checked the track messages area of exchange and can not find them. Where else can I look to find out what happened to these emails??