Cloudmark is now part of Proofpoint. Learn More

About Proofpoint

What should I do if my messages are blocked because of Cloudmark Sender Intelligence?


If your service provider has indicated that your outgoing messages are being blocked on the basis of data from Cloudmark Sender Intelligence (CSI), follow the instructions below to resolve the problem:


  1. Fill out the CSI remediation form.
  2. Respond to the automated message you will receive when you have completed the remediation form.

    You will receive another message when your request has been processed.

  3. Try sending your messages again.
Request support

Support Categories

Search Knowledge Base

Site Map  •  Privacy Policy  •  ©2002–2020 Cloudmark, Inc.