Mailkube

Send transactional email over REST or SMTP. Unlimited sending domains on every plan, and 4,000 emails per month are free.

We run the mail infrastructure your product depends on, so you can go build it.

POST to the REST API, or relay through SMTP from whatever you already run. Templates, tags and topics travel over SMTP headers. An existing system gets them without a rewrite.

The routing is run by people who have spent more than fifteen years on email infrastructure and inbox placement.

Templates, scheduled sending, webhooks, topics and tags ship with the product.

Customer data is stored at rest in the European Union, and operational access to it happens from inside the EU.