Features
Command Line Interface
Send mail, manage scheduled sends and receive webhook events from your terminal, with an embedded skill so a coding agent drives it correctly.
Email Templates
Keep your email bodies out of your application code. Templates are versioned, rendered server-side, and referenced at send time.
Message Tags
Label a send with your own name and value pairs. The label rides the message and comes back on every event, so logs and dashboard slice by campaign.
REST API
One authenticated POST sends an email. A single endpoint, a key scoped to a verified domain, and delivery events pushed back to you as webhooks.
Scheduled Sending
Add a timestamp to a normal send and the message waits. Group a campaign under one batch id, then reschedule or cancel the whole thing before it goes out.
SDKs
Official clients for the languages you already write in, plus framework integrations, each covering the same send surface and verifying your webhooks.
SMTP Relay
Point an existing SMTP client at mailkube and keep your code as it is. Same delivery, same logs, same webhooks as the REST API.
Webhooks
Signed POSTs to your server the moment an email is delivered, bounces, is opened or clicked. The only way to learn what happened to a message you sent.