{"status":"error: SendGrid API error: status=503 Service Unavailable, body=upstream connect error or disconnect/reset before headers. reset reason: connection termination","last_sync_at":"2026-04-14T12:45:09.885105857+00:00","last_sync_records":90,"last_sync_duration_ms":36202,"total_syncs":797,"uptime_seconds":2918411}