Read receipt problem

Good Morning friends,

I got a problem in one report,

at my client side there is one report is scheduled, with one username,if the report runs, it will send the output to some of users through mails, but the problem here is if they opened the,

mails, the user is getting the mesage, like they have seen the mails, he is getting message for ever one by that his inbox is getting filled every day, in that report one sap submit programme is there sd70av3a can u pls guide me how to restrict.

Regards

Jagadeeshwar.B