Verify what Blacklist you are on by going to http://www.mxtoolbox.com/blacklists.aspx and using the "Spam database lookup". Enter your static IP address and look for any RED areas. Once this information is obtained, please e-mail us your name, contact phone number, and Windstream static IP address that is blacklisted to email@example.com. You will be contacted by a Windstream technician to help in getting your static IP de-listed. DO NOT try to remove the block yourself. Most Blacklisting companies need to be contacted by us at Windstream. Many Blacklists companies will quickly de-list you, but keep in mind that there will be a propagation time after you are de-listed. (Sometimes as long as 7 to 20 days) The reason for this length of time is the Blacklisting companies customers pull updated lists at scheduled times. Windstream has no control over this.