Bulk email infrastructure, built for scale

Deliver millions of emails.
Track every single one.

RunSMTP is a high-volume email delivery platform with real-time analytics, RabbitMQ-powered queueing, and multi-agent SMTP distribution — all controllable from one dashboard.

Get started free
931+
emails per campaign
3
SMTP agents parallel
<1s
queue publish time
100%
open source stack
Platform features
Everything you need to send at scale

From CSV upload to queue delivery — the full pipeline in one tool.

CSV upload & auto-campaign
Upload any CSV — RunSMTP auto-creates a campaign, parses emails, and queues them immediately.
Real-time analytics
Track delivery, open rate, click-to-open, bounces, and unsubscribes across all campaigns.
RabbitMQ queue engine
Emails published to a durable RabbitMQ queue, consumed by parallel worker agents — no loss on failure.
Multi-agent SMTP distribution
Workload split across N SMTP agents automatically. Scale horizontally — no code changes required.
Custom subject & body
Edit subject, from address, and HTML body per campaign. Changes publish instantly to the queue.
PostgreSQL audit trail
Every campaign and email address persisted in Postgres. Query your delivery history any time.
How it works
From upload to inbox in 4 steps

The full send pipeline — no external services, no black boxes.

1
Upload CSV
Drop any CSV with email addresses into the Email Lists tab.
2
Campaign created
Backend auto-creates a campaign and inserts all addresses into Postgres.
3
Compose & send
Set subject, body, and from address in Campaigns. Hit send.
4
Queue & deliver
Emails distributed to SMTP agents via RabbitMQ, delivered in parallel.
Pricing
Simple, transparent plans

Start free. Scale when you need to.

Starter
$0/mo
For individuals testing the platform.
  • Up to 5,000 emails/mo
  • 1 SMTP agent
  • Basic analytics
  • CSV upload
Most popular
Growth
$49/mo
For teams sending regularly.
  • Up to 100,000 emails/mo
  • 3 SMTP agents
  • Full analytics + queue view
  • Custom subject & body
  • Priority support
Enterprise
Custom
For high-volume senders and agencies.
  • Unlimited emails
  • Unlimited SMTP agents
  • Dedicated infrastructure
  • SLA + dedicated support
  • Custom integrations

Ready to send at scale?

Join teams already using RunSMTP to deliver campaigns reliably, fast, and at any volume.

Start for free Request a demo