How do ESPs process and remove complainers automatically?

Reputable ESPs automate FBL processing as a core platform function:

The ESP maintains FBL registrations with major providers on behalf of their customers. Complaint reports flow to ESP-managed addresses.

Automated systems parse incoming ARF messages and extract complainant email addresses. The parsing happens in real-time as reports arrive.

Extracted addresses are immediately added to suppression lists at the account level. The suppression typically happens within minutes.

Subsequent sends automatically exclude suppressed addresses. No manual intervention required.

ESPs also aggregate complaint data into reporting dashboards so customers can monitor rates and identify problematic campaigns.

Automated FBL processing is like having a crew that intercepts complaint letters, files them properly, and updates the manifest before the next voyage, all without the captain lifting a finger.