plunk
Send transactional and marketing emails with Plunk. Use when a user asks to send emails from an app, set up email automation, create drip campaigns, or use a simple open-source email platform.
What this skill does
# Plunk
## Overview
Plunk is an open-source email platform for transactional emails (welcome, password reset, receipts) and marketing campaigns (newsletters, drip sequences). Self-hostable or use the cloud version. Simple API, React email templates.
## Instructions
### Step 1: Send Transactional Email
```typescript
// lib/email.ts — Send emails via Plunk API
const PLUNK_API_KEY = process.env.PLUNK_API_KEY!
export async function sendEmail(to: string, subject: string, body: string) {
await fetch('https://api.useplunk.com/v1/send', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
Authorization: `Bearer ${PLUNK_API_KEY}`,
},
body: JSON.stringify({ to, subject, body }),
})
}
// Usage
await sendEmail('[email protected]', 'Welcome!', '<h1>Welcome to our app</h1>')
```
### Step 2: Track Events (for Automations)
```typescript
// Track user events to trigger automated emails
await fetch('https://api.useplunk.com/v1/track', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
Authorization: `Bearer ${PLUNK_API_KEY}`,
},
body: JSON.stringify({
event: 'user-signed-up',
email: '[email protected]',
data: { name: 'John', plan: 'free' },
}),
})
// Configure automation in Plunk dashboard:
// When "user-signed-up" → send welcome email → wait 3 days → send onboarding tips
```
## Guidelines
- Free tier: 100 emails/month. Self-hosted: unlimited.
- Use events + automations for drip campaigns instead of manual sends.
- For higher volume, consider Resend or SendGrid.
- Self-host with Docker for full control and unlimited emails.
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