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
will work
Build a segment, pick two subject lines, and hit launch. Watch the A/B test run live — a browser-side preview of the real Posthawk broadcasts flow we're shipping next.
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 tomorrow at 9am in the recipient's timezone. Cancel or reschedule any time before it goes out.
A/B Testing
Send variant A to 10% of your list, B to another 10%, and the winner (by open or click rate) to the remaining 80%. Fully automated.
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.
Pause & Resume
Spotted a typo mid-send? Hit pause, fix the template, resume. The queue handles the rest without re-sending to anyone.
Be first in line
Broadcasts are shipping soon. Join the waitlist and we'll email you the day it's live.