we have a user in our domain who is sending delivery and read receipts to other users inside our domain. She is claiming that sometimes she is getting the delivery receipt and sometimes she is not even though she knows that the email was delivered. She said she will somtimes get the read receipt but not the delivery receipt.
As i said all users are on our domain running Exchange 2003 and they are using Outlook 2010.
Just wondering if anyone came across this and if they know what could be happing.