What is Unosend used for?

Unosend is an email API for developers to send transactional email by API or SMTP, with domains, dedicated IPs, delivery logs, webhooks, templates and credit-based billing. It is a good fit for sending password reset and receipt emails from an app, and monitoring delivery and bounce rates per sending stream.

How much does Unosend cost?

Unosend is a paid product with no free plan. Credit-based: Starter costs $4 per 10,000 emails with no subscription, plus 3,000 free credits at signup. Business is custom priced.

Is Unosend open source?

No. Unosend is proprietary (closed-source) software and can't be self-hosted. In the Email Marketing category, open-source options include Postal, Plunk and Listmonk.

What are some alternatives to Unosend?

Unosend competes with Resend, Postmark and SendGrid.

Unosend: features, pricing and alternatives

About Unosend

Unosend is an email API built for transactional messages such as password resets, order confirmations and verification codes. It offers an HTTP API and an SMTP relay for connecting existing apps without code changes, separate sending streams for transactional mail, notifications and updates, and real-time delivery logs showing sends, deliveries, opens, clicks and bounces. It positions itself as an alternative to Resend.

Deliverability features include DKIM, SPF and DMARC setup, warmed IPs and dedicated IP options with reputation controls, automatic bounce handling and suppression lists, TLS encryption and scoped API keys. A template engine supports responsive HTML emails with Handlebars variables and previews across more than 20 email clients, and webhooks send events for deliveries, bounces, opens and clicks.

Billing uses credits with usage tracking and optional auto top-up, and the site has docs, comparison pages, contact sales and a pricing page. A notice on the site says the service continues as normal for customers.

Key features

Transactional email API and SMTP relay
Real-time delivery and bounce logs
DKIM, SPF and DMARC setup
Dedicated and warmed IP options
Handlebars template engine with previews
Webhooks for delivery events
Credits with auto top-up

Good fit for

Sending password reset and receipt emails from an app
Monitoring delivery and bounce rates per sending stream

Tags: email-api; transactional-email; smtp; deliverability; webhooks; developer-tools; resend-alternative

Unosend: questions and answers

What is Unosend used for?: Unosend is an email API for developers to send transactional email by API or SMTP, with domains, dedicated IPs, delivery logs, webhooks, templates and credit-based billing. It is a good fit for sending password reset and receipt emails from an app, and monitoring delivery and bounce rates per sending stream.
How much does Unosend cost?: Unosend is a paid product with no free plan. Credit-based: Starter costs $4 per 10,000 emails with no subscription, plus 3,000 free credits at signup. Business is custom priced.
Is Unosend open source?: No. Unosend is proprietary (closed-source) software and can't be self-hosted. In the Email Marketing category, open-source options include Postal, Plunk and Listmonk.
What are some alternatives to Unosend?: Unosend competes with Resend, Postmark and SendGrid.