>Is it just me or others are getting a lot of Deliver Failure Spam emails? I am receiving them in hundreds per day in the recent couple of days. I think those who generate these spams should be killed (no smiley).

Generally that is caused by a spammer using your email address sending blasts of email to addresses that may or may not exist. Addresses that don't exist will generally get a Non-Delivery report returned to your email address.

Not much you can do about it unless you want to filter out NDR messages - problem there is that you will be filtering reports you probably should see as well.