Email that gets
there. Every time.
Transactional email delivery you can count on. Send at scale with a simple REST API or authenticated SMTP, and focus on what you're building.

The pieces that keep email moving
A dependable foundation for sending transactional messages, built around the workflows developers already use.
Send transactional email with a clean HTTP interface.
Keep your existing SMTP-based integration.
Prove your domain is authorized to send mail.
Keep applications and credentials organized.
Process delivery work asynchronously and safely.
Keep delivery failures and complaints visible.
Prevent sending to addresses that should be excluded.
Reuse consistent content for transactional messages.
Notify your application about delivery events.
Understand sending activity with delivery metrics.
Pay for what you send
Usage-based pricing, with the proposed rate shown clearly as provisional until confirmed.
This proposed rate is not yet a confirmed price. The unit and amount remain configurable.
Get startedBuild on a better way to send.
Start with a Mailflow workspace for your application.