An alternative to Resend
One API.
Infinite emails.
Unosend is the email API built for product teams and enterprises.
Send transactional emails and track from one place.
Used by developers at
Features
Everything you need to send
From sending agents to delivery logs, credits to SMTP - all the tools to get emails delivered fast.
Transactional emails
Emails your users are waiting for
Password resets, order confirmations, verification codes. Deliver critical emails in under 3 seconds.
Total emails dispatched
Last 30 days
11.4k
1.7k1.3k8624310
May 13May 16May 19May 22May 25May 28May 31Jun 3Jun 6Jun 9
Why Unosend
Feature Highlights
The core tools for sending, monitoring, and protecting transactional email at scale.
Great deliverability
Built exclusively for transactional email, optimized for high inbox rates and delivery under 3 seconds.
Complete analytics
Track delivery, open, click, and bounce rates in real time with detailed per-email logs and timestamps.
Sender reputation
Automatic bounce handling and suppression lists keep your reputation clean and your emails out of spam.
Template engine
Build responsive branded emails in HTML with Handlebars variables and preview across 20+ email clients.
Enterprise security
DKIM, SPF, and DMARC out of the box with TLS encryption, scoped API keys, and signed outbound messages.
Webhooks & events
Get real-time notifications for deliveries, bounces, opens, and clicks with HMAC-verified payloads.
SMTP / API
Send via a clean REST API or standard SMTP relay — works with your existing stack without configuration changes.
Domains
Verify sending domains, manage SPF, DKIM, and DMARC records, and separate streams across teams or products.
Processed Emails
See sent, delivered, bounced, opened, and clicked status per message with full event history for easy debugging.
Templates
Editor & HTML
Visual editor for quick template creation. Full HTML editor when you need complete control.
FAQ
Frequently Asked Questions
Answers to common questions about credits, SMTP, domains, and sending with Unosend.
How does pricing work?
Can I send from my own domain?
How do I get started?
What kind of emails can I send?
Do you support SMTP?
What happens when I run out of credits?
One API. Infinite emails.
Set up your account in under two minutes.