An API that reads clearly
Typed SDKs, useful errors, and primitives that make sense on the first pass.
Every message leaves a signal.
Mailbeams sends product email and returns a legible trail—from accepted request to recipient server. Fast to integrate. Calm to operate.
3,000
free sends / mo
142 ms
sample delivery
24 / 7
event telemetry
delivery carrier / pointer reactiveMB / 04.82
stream / production
Recent signal
arden@lumon.studio
em_81NB · delivered
142ms
mina@framehaus.co
em_7XQP · delivered
189ms
ops@hearthline.com
em_6KMV · opened
1.4s
40.7128° N / edge iad-1request → route → recipientsystem nominal
On the wire at
Northstarframe/hausHearthlineSATURN LABS
Everything between send and received.
Delivery, observability, and reputation on one surface. The useful details stay close; operational noise stays out of the way.
calibrated for production
message trajectory / em_81NB
A complete delivery record, down to the route.
01038 ms
Accepted
Request authenticated
02091 ms
Dispatched
Edge route selected
03142 ms
Delivered
Recipient MX confirmed
Events you can trust
Signed webhooks, replay controls, and the full event record for every message.
Domains, handled
Guided checks for SPF, DKIM, and DMARC alignment without the DNS guesswork.
Signal over noise
See delivery and reputation shifts before they become customer-facing incidents.
First delivery in five minutes.
Install the SDK, add your key, and send. Every primitive is typed. Every error explains what happened and what to do next.
01
Fast setup
A focused quickstart with sensible defaults.
02
Safe retries
Idempotency without duplicate messages.
03
Scoped by default
Granular keys and signed event payloads.
api.mailbeams.com / v1
import { Mailbeams } from "mailbeams";
const mailbeams = new Mailbeams(process.env.MAILBEAMS_KEY);
const email = await mailbeams.emails.send({
from: "Nila <hello@northstar.dev>",
to: "arden@lumon.studio",
subject: "Your build is ready",
template: "build-ready",
variables: { project: "Aurora" },
});Know when the signal moves.
Route-level monitoring and reputation controls surface small shifts before they become large problems.
Global delivery health
24 hours / production network
00:0006:0012:0018:00NOW
99.42%
Delivery rate
318 ms
Median latency
0.73%
Bounce rate
Send the next message with the signal intact.
Create a workspace, verify your domain, and send the first 3,000 emails each month at no cost.