01
Transactional API
Single-call sends with templating, merge fields, open/click tracking, and idempotency keys for safe retries.
Platform
One platform for every email you send
From a password reset to a million-recipient campaign — Relayly handles sending, validation, and deliverability in a single, developer-friendly platform.
01Sending
Fast, reliable email delivery
Idempotent, low-latency sending with the tooling production apps need.
02
Marketing campaigns
Lists, segments, sequences, and A/B testing with automatic one-click unsubscribe.
03
SMTP relay
A drop-in authenticated SMTP endpoint for apps and platforms that speak SMTP.
02Quality
Protect your sender reputation
Clean lists and authenticated domains keep you out of the spam folder.
01
Real-time validation
Syntax, MX, disposable, role, catch-all and SMTP verification — by API or bulk upload.
02
Domain authentication
Guided SPF, DKIM and DMARC with per-domain keys and one-click DNS verification.
03
Suppression management
Automatic bounce, complaint, and unsubscribe suppression that's CAN-SPAM ready.
03Deliverability
Reach the inbox at any scale
Automation that does the deliverability heavy-lifting for you.
01
Automated IP warmup
Volume-gated warmup that ramps dedicated IPs on real, engaged sending.
02
Reputation monitoring
Live blacklist checks, reputation scoring, and automatic throttling of at-risk IPs.
03
Analytics & logs
Per-message event logs, provider breakdowns, and dashboards for every metric.
04Under the hood
See exactly how Relayly works
Descriptive, real flows — not marketing fluff. Here's what happens on every send, every validation, and every event we stream back.
Transactional send pipeline
From your API call to the recipient's mail server — signed, warmed, and tracked.
Real-time validation funnel
Every address runs a layered set of checks before it ever costs you a bounce.
Signed webhook delivery
Events are HMAC-signed so your endpoint can trust every payload — with automatic retries.