See CubeMails in action
A quick look at the platform — from sending your first email to running marketing campaigns.
Server Dashboard
Real-time stat cards showing sent volume, delivery rate, queue depth, and bounce rate. 30-day graphs with hourly/daily breakdowns. Full message history with search and filters.
Email Templates
Create reusable email templates with a split-pane editor — dark code editor on the left, live preview on the right. Insert {{variables}} with one click. Toggle between desktop and mobile preview.
Marketing Campaigns
Build campaigns by choosing a server, contact list, and template. Track opens, clicks, and bounces in real-time with a progress bar. Pause and resume campaigns on the fly.
Contact Management
Manage subscriber lists with CSV import/export or manual add. Track subscription status (subscribed, unsubscribed, bounced) with stat cards per list.
REST API v2
Full HTTP API for sending emails with template support, validating addresses, querying messages, and pulling statistics.
# Send with template curl -X POST https://your-server/api/v2/messages/send \\ -H "X-Server-API-Key: YOUR_KEY" \\ -d "to=user@example.com" \\ -d "from=hello@yourdomain.com" \\ -d "template=welcome-email" \\ -d "template_variables[first_name]=Alice" # Validate an email curl -X POST https://your-server/api/v2/validate/email \\ -H "X-Server-API-Key: YOUR_KEY" \\ -d "email=test@mailinator.com"
Billing & Plans
Stripe-powered billing with self-serve subscription management. Usage meters show servers, domains, and team members against plan limits. Upgrade or downgrade anytime.
Ready to try it yourself?
Create a free account and send your first email in under 5 minutes.