Schulte RBL Blacklist Check & Removal Process

How to check if you are listed in Schulte RBL?

How to remove a Domain/IP address from Singular TTK?

  • Email your request to rbl@schulte.org
  • Subject Line: Include your IP address and the phrase “Delist Request” (e.g., “Delist Request for IP 192.168.1.1”)
  • Body: In plain text, state your IP address, explain that the configuration error (e.g., rDNS issue) has been fixed, and ask politely for removal.
  • Crucially: Do not send mass emails, spam, or automated messages to this address, as it will likely result in a permanent block.
  • As it is a manually maintained list, processing times can vary. It may take anywhere from a few hours to 48 hours for your request to be reviewed and implemented.