I am running a SBS 2008 with Exchange 2007. I have a barracuda in front of my exchange server. I am receiving emails from a company that I deal with daily and receive numerous throughout the day. If we have an email that is sent at the exact same time (according to the time stamp on the barracuda) we only receive one into the mailbox on Exchange. The second never does show up. I can go into the barracuda and resend it to exchange, then it it will show up. These emails are critical to our business (Transportation) and we receive our paperwork from our drivers through this email. I am not quite sure what would be causing this. There are no error logs showing a delay or failure to deliver from the barracuda to the server. Anti-Spam is turned off on Exchange. Any thoughts? Am I over looking something?