Notice: Due to (WSFF) enabling and disabling their RBL, our Blacklist Monitoring Service provided false results. From time to time list providers will enable their list (and list everyone) in an effort to  ensure that no one is using their list.

At this time we have removed this RBL from our list. Our Engineers are also conducting an audit of our current list to ensure that it is the most accurate it can be.

For more information on what Blacklists are and how MxToolBox can help, read this blog post.

MxToolBox is not affiliated with any Blacklists, we just provide a public tool that can be utilized to see if you are on a Blacklist. If you are on a Blacklist, rest assured as we do offer Blacklist Protection! For more information please feel free to visit our website or email us at

We’re always looking for new Blacklists to add, so if you want to suggest one to us, please send an email to

For information about other Blacklists that have shut down or Blacklists that are having problems, view this forum post.

Leave a Reply