Transactional Email

Every OTP. Every receipt.
In your customer's inbox.

Integrate once and trust forever. Under 400ms delivery. 99% uptime. Marketer-managed templates. REST API.

<400ms
Avg delivery
99%
Uptime SLA
96%
Inbox rate
What it sends

Every email your product
needs to send automatically.

OTPs, receipts, confirmations, alerts — every message your product triggers, delivered with the same 96% inbox reliability as your marketing campaigns.

OTP & verification
Login codes, phone verification, 2FA — delivered in under 400ms. Every code that reaches the inbox is a customer who completes the flow.
<400ms delivery
Order & payment receipts
Purchase confirmations, payment receipts, invoice emails — the messages customers open more than anything else you send. Make them count.
96% inbox rate
Alerts & notifications
Account alerts, security notifications, system updates — the emails customers expect immediately. Delayed delivery is a broken product experience.
99% uptime SLA
Password reset
The email that decides whether a customer recovers their account or churns. A delayed or spam-landed reset email is a lost customer. Ours land in the inbox.
Inbox guaranteed
Booking confirmations
Appointment confirmations, reservation receipts, scheduling emails — the first touchpoint after a customer commits. It has to land instantly.
Real-time delivery
Shipping & tracking
Order shipped, out for delivery, delivered — every logistics update your customer is waiting for. Silence after purchase kills trust faster than anything else.
Webhook triggered
Built for both teams

Developers integrate once.
Marketers own it forever.

No ticket required every time a template needs updating. No engineering bottleneck on every copy change. Both teams work independently.

For your developer
Integrate in one afternoon.
Never touch it again.

Full REST API. SDKs for Node, Python, PHP. Webhook events for every delivery state.

// Node.js — 10 lines to production
const gomailer = require('go-mailer')
 
await gomailer.send({
  to: user.email,
  template: 'otp-verification',
  vars: { code: otp }
})
 
// → 200 OK · delivered · 382ms
For your marketing team
Update your message.
Without waiting for devs.

Marketers manage every transactional template — copy, design, branding — without touching the codebase. Developers just reference the template ID.

Drag-and-drop template editor
Dynamic variables — personalise every send
A/B test subject lines without engineering
Preview before publish — no test sends needed
OTP Verification
Last edited 2 days ago
Live
Payment Receipt
Last edited 5 days ago
Live
Account Alert
Draft — awaiting review
Draft
Reliability

99% uptime.
Every month.

Your transactional emails are business-critical. Downtime means failed OTPs, missed receipts, and lost customers. We treat uptime the same way.

99%
Uptime SLA
<400ms
Avg delivery time
8mo
Zero incident streak
Uptime · last 8 months
Aug
100%
Sep
100%
Oct
100%
Nov
99.8%
Dec
100%
Jan
100%
Feb
100%
Mar
100%
Pricing

Simple, transparent pricing.

No hidden fees. No dollar-based billing surprises. Just clear Naira pricing that scales with you.

0.50/email
  • No monthly base fee
  • Pay only for what you send
  • Dedicated IP available
  • Volume discounts from 100k+
“Go-Mailer stands out for their exceptional customer support and outstanding email deliverability. Our transactional emails land in inboxes consistently, and whenever we have a question, their team responds quickly and helpfully.”
SA
Sodiq Alabi
Founder · Vasrefil

Integrate once.
Trust it forever.

Your users deserve instant, reliable transactional emails — and you deserve an API that just works. Start sending in minutes.

From ₦5,000/monthNo dollar cardNaira billing always99% uptime SLA