NDR or Backscatter Spam - How Non Delivery Reports Become a Nuisance
You might remember a while ago we mentioned MP3 spam, which in October last year was the latest evolution in spam.
Currently there is a new type annoying mail-server owners the world over, it’s known as NDR or Backscatter Spam and involved NDRs or Non Delivery Reports (those emails you get when you send a mail [...]
