Bharani.......Things for you to consider before ......you assume someone is spying on you......Outlook Express has several nice features built into it .......One is the ability to ask for and send a receipt. I use that feature if I am Emailing a number of people and I need to know that they have received my message and have read it .
Now then if you still feel that this feature was designed and incorporated in Outlook Express to spy on you ........do the following: Open your Outlook Express "In box" , Up at the top .......click on the "options" button , next select "options" from the drop down menu , when it opens click on the receipts tab........look down and mark......Never send a receipt.....
click apply and then ok ........
Your all done .
dl65