Broadcasts
for developers
Send marketing campaigns to your audience with the same API you use for transactional email. No second subscription. No drag-and-drop builder nobody asked for. Just your React Email templates and the contacts you already have.
Here's how broadcasts
in the dashboard
Build a segment, pick two subject lines, and hit launch. Watch the A/B test run live — a demo of the broadcasts flow available right now in your Posthawk dashboard.
Ship a campaign,
not a migration
Import your contacts
Upload a CSV or sync from your app via the contacts API. Tag contacts on the way in — tags are how you segment later.
Compose with React Email
Use the same React Email templates you already built for transactional. No drag-and-drop builder, no templating DSL, just JSX.
Pick a segment
Filter your audience by tag, signup date, or last engagement. Preview exactly how many contacts will receive the broadcast before you send.
Send or schedule
Blast it now or pick a future time. Watch the real-time send dashboard as Posthawk works through the queue at full SES throughput.
Audience Segmentation
Segment contacts by any tag, property, or engagement signal. Segments are reusable — save once, send to again next week.
Scheduled Sends
Schedule a broadcast for a future time in your workspace timezone. Cancel or reschedule any time before it goes out.
React Email Templates
Reuse the exact same components across transactional and broadcast sends. Your header, footer, and CTA button stay consistent everywhere.
Real-Time Dashboard
Watch open rate, click rate, and unsubscribes climb live as the campaign ships. Compare against your last five broadcasts side by side.
Cancel mid-flight
Spotted a problem after hitting send? One click stops further fan-out. Emails already handed to SES will still deliver — they cannot be recalled — but everything still queued is dropped.
Ready to broadcast?
Sign up free and send your first broadcast to your contacts today. No separate tool needed.