Suppressions

The suppression list is the memory of who you must not contact. Sending to a suppressed address is refused before it leaves the queue.

List and manage

Suppressions are per channel. GET /email/suppressions and GET /sms/suppressions list them; POST adds an address by hand; DELETE removes one you are sure about. Hard bounces, complaints and unsubscribes add themselves automatically.

curl -X POST https://api.qsendyx.com/api/v1/email/suppressions \
  -H "Authorization: Bearer $QSENDYX_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "address": "user@example.com", "reason": "manual" }'

{
  "data": [
    {
      "address": "user@example.com",
      "reason": "hard_bounce",
      "created_at": "2026-07-17T18:05:36Z"
    }
  ],
  "next_cursor": null
}

Reasons