Postmark
Transactional email delivery service with an API, SMTP and templates
12 tools like Resend, chosen by what they do. About Resend

Transactional email delivery service with an API, SMTP and templates

Email API for sending, receiving and tracking transactional mail

Email API and marketing campaign tools, now part of Twilio

Email API, SMTP and test sandbox for developer and product teams

Email platform for SaaS teams, from campaigns to transactional mail

Email, SMS and CRM tools for marketing and transactional messages

Reliable receiving, routing and sending of webhooks and events


Feature flags with targeting rules and percentage rollouts

Open source email platform for transactional and marketing email

API for email, calendar and meeting data across providers

Self-hosted server for realtime messages and live updates