I'm new to Exchange and am trying to understand the output of Message Tracking. I have User1 who sent an internal message to User2 at 15:56 and User2 claims they didn't receive it until 9am the next day. They had been emailing/cc'ing the same message back and forth so narrowing by subject limits it to only 2 messages. Am I understanding correctly that it was immediately delivered? I'm guessing that the second entry is another in the line of multiple messages using the same subject.
Timestamp EventID Mess.Id ClientIp ClientHost ServIp
05/05 15:56:03 RECEIVE 88...24A Ip serv.dom Ip
05/05 15:56:03 DELIVER 88...24A <blank> serv <blank>
05/06 00:35:57 RECEIVE 88...0F5 Ip serv.dom Ip
05/06 00:35:57 DELIVER 88...0F5 <blank> serv <blank>
Software/Hardware used: Exchange 2007 on Server 2008