The email API that shows its work.

One REST API for transactional email: send, score every message for deliverability, and relay through your own SES or Resend account — managed and monitored for you.

See pricingRead the docs
RelayForge product illustration
RFRelayForge — Send consoleSample data
Message log — Sample

Every send, scored and traced.

One REST API sends the message, scores it for deliverability, and relays it through your own SES or Resend account. This is the log you get back — no “delivered” black box.

Welcome to YourApp
to newuser@example.com · your SES · us-east-1 · Sent → Delivered → Opened
Score 92
Password reset
to user@sampleapp.example · your SES · us-east-1 · Sent → Delivered → Opened
Score 87
Order receipt
to buyer@example.org · your Resend account · Sent → Delivered
Score 89
Magic link
to member@sample.example · your SES · eu-west-1 · Sent → Delivered
Score 74 · 1 flag
Sample send console — illustrative messages, routes and scores.Relay runs on your own SES or Resend account

Why RelayForge

Built for developers who want the job done right — and to see exactly how it was done.

Per-email deliverability score

Every send returns a 0–100 score with a full breakdown — authentication, content, reputation, engagement — plus plain-language flags telling you exactly what to fix.

Dry-run before you send

POST /v1/scores to validate and score any payload without relaying anything. Test templates and content safely.

Your infrastructure, managed

RelayForge never owns mail servers. Production relay runs on your own AWS SES or Resend account — provisioned, configured, and monitored for you. No shared-IP reputation roulette.

Resend-compatible API

The request shape you already know. Validation, auth, and error codes are explicit and documented — no surprises.

Honest logging

Every request is appended to a metadata-only JSONL log. Message bodies and API keys are never written to logs.

Simple, flat pricing

Monthly billing, cancel anytime. No per-seat games, no surprise bills.

Starter — $19/month

For the indie hacker sending their first 50K emails.

Growth — $49/month

For growing SaaS teams that need more volume and more domains.

Scale — $149/month

For high-volume senders who want a deliverability partner.

Compare all tiers

Start in minutes

Copy-paste quickstart in the docs — real requests against the real API.

Quickstart guide