Sent field showing wrong date and time!!

Hi Guys I am using php4 in windows NT. We are using an Microsoft Exchange server for handling mails. When I used mail function in my code, it is sending the mail correctly, but the receipient's mail box (Microsoft Outlook) shows the sent field as incorrect date and time. It is showing the other fields (From, Subject,..) O.K. Can any body tell me how how to show the correct sent date/time in the receipient's sent field. My Code: $to = clark.m@itr.com; $headers = "From: " . roger@bgh.com . "\n"; $subject = "Exam Results"; $body = "BlahBlah" ; mail($to, $subject, $body, $headers); Thanks Yours Clark