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Do Not Contact (DNC)

The DNC system prevents messages from being sent to excluded contacts. It includes manual management, automatic opt-out detection, and pre-send blocking.

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Features

  • Manual add/remove via UI or API
  • Auto opt-out: Replies containing STOP, UNSUBSCRIBE, OPT OUT, REMOVE ME, or DO NOT CONTACT are automatically added
  • Pre-send blocking: Every message is checked against DNC before sending
  • Campaign filtering: DNC contacts are skipped during campaign sends
  • E.164 normalization: Phone numbers are normalized for consistent matching

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UI

Navigate to /dnc (shield icon in sidebar):
  • Search and filter DNC entries
  • Add by phone or email
  • Remove entries
  • Paginated table view

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API

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List DNC Entries

GET /api/dnc?page=1&limit=50&search=904

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Add to DNC

POST /api/dnc
{ "phone": "(904) 295-6129", "reason": "manual" }
Phone is normalized to E.164: +19042956129

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Remove from DNC

DELETE /api/dnc?id=507f1f77bcf86cd799439011

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Debugging

Loki: {service="app-*"} |= "message.blocked.dnc"
Loki: {service="app-*"} |= "dnc.send.blocked"
DB: db.dnc_entries.find({ workspaceId: "org_xxx" })