Changelog
All notable changes to SendSend.
February 2026
Batch delivery API
You can now submit up to 50,000 items in a single API call. Items are automatically distributed across worker nodes for optimal throughput while respecting your rate limits.
- Added
POST /v1/jobsbatch endpoint - Configurable batch sizes per delivery config
- Real-time progress tracking via dashboard
Per-provider rate limiting
Configure rate limits on a per-destination basis. SendSend automatically queues excess items and delivers them as capacity becomes available.
- Max requests per second per provider
- Max concurrent connections per provider
- Automatic backpressure handling
January 2026
Real-time dashboard
Monitor your deliveries in real-time with the new dashboard. Track success rates, latency percentiles, and delivery progress across all your configs.
- Live delivery progress bars
- Success/failure rate charts
- Latency P50/P95/P99 tracking
- Detailed error logs with stack traces
Automatic retries
Failed deliveries are now automatically retried with exponential backoff and jitter. Configure retry policies per delivery config.
- Configurable max attempts (1-10)
- Exponential backoff with jitter
- Dead letter queue for exhausted retries
December 2025
Initial release
SendSend is live! The delivery API for modern applications.
- REST API for creating delivery jobs
- Basic rate limiting
- Webhook delivery support
- Dashboard for monitoring