curl -X DELETE "https://server.smartlead.ai/api/v1/email-accounts/tag-mapping?api_key=YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"email_account_ids": [101, 102], "tag_ids": [1]}'

{
  "ok": true,
  "message": "Tags removed successfully"
}

{
  "message": "Invalid API Key"
}