I have a requirement that a mail has been sent to the client with excel attachment which has multiple worksheets that too executing in the background. As per the following link I did http://scn.sap.com/people/goutham.bobba/blog/2012/06/04/send-email-in-background-with-excel-attachment-multiple-sheets#comment-423557 and it works perfectly. But the problem starts when the client opens the attachment, he is a getting a message that "This attachement was removed because it contains data that could pose security risk" but for my mail id, it doesnt throw any error. Can any one please help on this issue ??