# Plunk

> AGPL-3.0 transactional email, workflows, and broadcasts

**Category:** Comms  
**Pricing:** freemium  
**URL:** https://www.useplunk.com  
**GitHub:** https://github.com/useplunk/plunk  
**Added:** 2026-09-03

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## The Hook

Plunk is Resend plus campaigns, if you can live with AGPL and a branded footer.

## What's Good

AGPL-3.0. Transactional, workflow automation, and broadcasts in one. Hosted Free is 1,000 emails/month, no credit card. Self-host with Docker Compose. Unlimited contacts on the pricing page.

## The Catch

AGPL-3.0 is copyleft. Hosted Free keeps Plunk branding. This is not Resend at volume — 1k/mo is the free wall, then $0.001/email. Self-host means you bring SES or equivalent.

## Verdict

AGPL email with a real 1k hosted free tier. Branding stays until you pay.