Complaint Feedback Loop Address Header

The document describes a method that allows a Message Originator to specify a complaint feedback loop (FBL) address as a message header field. Also, it defines the rules for processing and forwarding such a complaint. The motivation for this arises out of the absence of a standardized and automated way to provide Mailbox Providers with an address for a complaint feedback loop. Currently, providing and maintaining such an address is a manual and time-consuming process for Message Originators and Mailbox Providers.

Example code

• https://github.com/jpbede/cfbl-reporter

Users

• https://abusix.com/feedback-loops/