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What you see when your domain has this problem
Added to IMP WORM Details area Ignore

More Information About Imp Worm

Listing in the ImproWare (IMP-SPAM or IMP-WORM) blacklist is a result of your IP Address being identified as actually sending Spam. Note, this could be in the form a large bulk-mailer sent that does not follow the "Canned Spam" Act, someone using your server to relay spam, or another server configuration problem. Please note that if you are listed on IMP-WORM as well, this is most likely the result of a Worm or Trojan Virus (Malware) that is generating spam from your server, or a machine behind the server IP Address.

More information about IMP WORM can be found at their website: http://antispam.imp.ch/?lng=1