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Email Template Builder
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Basé sur la classification professionnelle SOC
Get an email address without your human. Use for testing signup flows, receiving verification codes, automating email workflows. Free.
Automated cold email outreach pipeline using Resend API. Builds prospect lists from government databases or web scraping, enriches with contact info, sends personalized cold emails with drip follow-ups, and tracks responses. Use when setting up cold email campaigns, building lead lists, automating email outreach, prospecting businesses, sending drip sequences, or managing email deliverability.
Complete cold email system teaching research-driven personalization, "poke the bear" openers, custom signal hunting, and strict QA.
Writes personalized cold emails that actually get replies
Use when building email features, emails going to spam, high bounce rates, setting up SPF/DKIM/DMARC authentication, implementing email capture, ensuring compliance (CAN-SPAM, GDPR, CASL), handling webhooks, retry logic, or deciding transactional vs marketing.
Email marketing design with layout patterns, subject line formulas, and deliverability rules. Covers welcome sequences, promotional emails, transactional templates, and mobile optimization. Use for: email marketing, newsletter design, drip campaigns, email templates, transactional emails. Triggers: email design, email template, email marketing, newsletter design, email layout, email campaign, drip campaign, welcome email, promotional email, transactional email, email subject line, email header image, email banner
| name | email-template-builder |
| description | Email Template Builder |
Tier: POWERFUL
Category: Engineering Team
Domain: Transactional Email / Communications Infrastructure
Build complete transactional email systems: React Email templates, provider integration, preview server, i18n support, dark mode, spam optimization, and analytics tracking. Output production-ready code for Resend, Postmark, SendGrid, or AWS SES.
emails/
├── components/
│ ├── layout/
│ │ ├── email-layout.tsx # Base layout with brand header/footer
│ │ └── email-button.tsx # CTA button component
│ ├── partials/
│ │ ├── header.tsx
│ │ └── footer.tsx
├── templates/
│ ├── welcome.tsx
│ ├── verify-email.tsx
│ ├── password-reset.tsx
│ ├── invoice.tsx
│ ├── notification.tsx
│ └── weekly-digest.tsx
├── lib/
│ ├── send.ts # Unified send function
│ ├── providers/
│ │ ├── resend.ts
│ │ ├── postmark.ts
│ │ └── ses.ts
│ └── tracking.ts # UTM + analytics
├── i18n/
│ ├── en.ts
│ └── de.ts
└── preview/ # Dev preview server
└── server.ts
// emails/components/layout/email-layout.tsx
import {
Body, Container, Head, Html, Img, Preview, Section, Text, Hr, Font
} from "@react-email/components"
interface EmailLayoutProps {
preview: string
children: React.ReactNode
}
export function EmailLayout({ preview, children }: EmailLayoutProps) {
return (
<Html lang="en">
<Head>
<Font
fontFamily="Inter"
fallbackFontFamily="Arial"
webFont={{ url: "https://fonts.gstatic.com/s/inter/v13/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZ9hiJ-Ek-_EeA.woff2", format: "woff2" }}
fontWeight={400}
fontStyle="normal"
/>
{/* Dark mode styles */}
<style>{`
@media (prefers-color-scheme: dark) {
.email-body { background-color: #0f0f0f !important; }
.email-container { background-color: #1a1a1a !important; }
.email-text { color: #e5e5e5 !important; }
.email-heading { color: #ffffff !important; }
.email-divider { border-color: #333333 !important; }
}
`}</style>
</Head>
<Preview>{preview}</Preview>
<Body className="email-body" style={styles.body}>
<Container className="email-container" style={styles.container}>
{/* Header */}
<Section style={styles.header}>
<Img src="https://yourapp.com/logo.png" width={120} height={40} alt="MyApp" />
</Section>
{/* Content */}
<Section style={styles.content}>
{children}
</Section>
{/* Footer */}
<Hr style={styles.divider} />
<Section style={styles.footer}>
<Text style={styles.footerText}>
MyApp Inc. · 123 Main St · San Francisco, CA 94105
</Text>
<Text style={styles.footerText}>
<a href="{{unsubscribe_url}}" style={styles.link}>Unsubscribe</a>
{" · "}
<a href="https://yourapp.com/privacy" style={styles.link}>Privacy Policy</a>
</Text>
</Section>
</Container>
</Body>
</Html>
)
}
const styles = {
body: { backgroundColor: "#f5f5f5", fontFamily: "Inter, Arial, sans-serif" },
container: { maxWidth: "600px", margin: "0 auto", backgroundColor: "#ffffff", borderRadius: "8px", overflow: "hidden" },
header: { padding: "24px 32px", borderBottom: "1px solid #e5e5e5" },
content: { padding: "32px" },
divider: { borderColor: "#e5e5e5", margin: "0 32px" },
footer: { padding: "24px 32px" },
footerText: { fontSize: "12px", color: "#6b7280", textAlign: "center" as const, margin: "4px 0" },
link: { color: "#6b7280", textDecoration: "underline" },
}
// emails/templates/welcome.tsx
import { Button, Heading, Text } from "@react-email/components"
import { EmailLayout } from "../components/layout/email-layout"
interface WelcomeEmailProps {
name: "string"
confirmUrl: string
trialDays?: number
}
export function WelcomeEmail({ name, confirmUrl, trialDays = 14 }: WelcomeEmailProps) {
return (
<EmailLayout preview={`Welcome to MyApp, ${name}! Confirm your email to get started.`}>
<Heading style={styles.h1}>Welcome to MyApp, {name}!</Heading>
<Text style={styles.text}>
We're excited to have you on board. You've got {trialDays} days to explore everything MyApp has to offer — no credit card required.
</Text>
<Text style={styles.text}>
First, confirm your email address to activate your account:
</Text>
<Button href={confirmUrl} style={styles.button}>
Confirm Email Address
</Button>
<Text style={styles.hint}>
Button not working? Copy and paste this link into your browser:
<br />
<a href={confirmUrl} style={styles.link}>{confirmUrl}</a>
</Text>
<Text style={styles.text}>
Once confirmed, you can:
</Text>
<ul style={styles.list}>
<li>Connect your first project in 2 minutes</li>
<li>Invite your team (free for up to 3 members)</li>
<li>Set up Slack notifications</li>
</ul>
</EmailLayout>
)
}
export default WelcomeEmail
const styles = {
h1: { fontSize: "28px", fontWeight: "700", color: "#111827", margin: "0 0 16px" },
text: { fontSize: "16px", lineHeight: "1.6", color: "#374151", margin: "0 0 16px" },
button: { backgroundColor: "#4f46e5", color: "#ffffff", borderRadius: "6px", fontSize: "16px", fontWeight: "600", padding: "12px 24px", textDecoration: "none", display: "inline-block", margin: "8px 0 24px" },
hint: { fontSize: "13px", color: "#6b7280" },
link: { color: "#4f46e5" },
list: { fontSize: "16px", lineHeight: "1.8", color: "#374151", paddingLeft: "20px" },
}
// emails/templates/invoice.tsx
import { Row, Column, Section, Heading, Text, Hr, Button } from "@react-email/components"
import { EmailLayout } from "../components/layout/email-layout"
interface InvoiceItem { description: string; amount: number }
interface InvoiceEmailProps {
name: "string"
invoiceNumber: string
invoiceDate: string
dueDate: string
items: InvoiceItem[]
total: number
currency: string
downloadUrl: string
}
export function InvoiceEmail({ name, invoiceNumber, invoiceDate, dueDate, items, total, currency = "USD", downloadUrl }: InvoiceEmailProps) {
const formatter = new Intl.NumberFormat("en-US", { style: "currency", currency })
return (
<EmailLayout preview={`Invoice ${invoiceNumber} - ${formatter.format(total / 100)}`}>
<Heading style={styles.h1}>Invoice #{invoiceNumber}</Heading>
<Text style={styles.text}>Hi {name},</Text>
<Text style={styles.text}>Here's your invoice from MyApp. Thank you for your continued support.</Text>
{/* Invoice Meta */}
<Section style={styles.metaBox}>
<Row>
<Column><Text style={styles.metaLabel}>Invoice Date</Text><Text style={styles.metaValue}>{invoiceDate}</Text></Column>
<Column><Text style={styles.metaLabel}>Due Date</Text><Text style={styles.metaValue}>{dueDate}</Text></Column>
<Column><Text style={styles.metaLabel}>Amount Due</Text><Text style={styles.metaValueLarge}>{formatter.format(total / 100)}</Text></Column>
</Row>
</Section>
{/* Line Items */}
<Section style={styles.table}>
<Row style={styles.tableHeader}>
<Column><Text style={styles.tableHeaderText}>Description</Text></Column>
<Column><Text style={{ ...styles.tableHeaderText, textAlign: "right" }}>Amount</Text></Column>
</Row>
{items.map((item, i) => (
<Row key={i} style={i % 2 === 0 ? styles.tableRowEven : styles.tableRowOdd}>
<Column><Text style={styles.tableCell}>{item.description}</Text></Column>
<Column><Text style={{ ...styles.tableCell, textAlign: "right" }}>{formatter.format(item.amount / 100)}</Text></Column>
</Row>
))}
<Hr style={styles.divider} />
<Row>
<Column><Text style={styles.totalLabel}>Total</Text></Column>
<Column><Text style={styles.totalValue}>{formatter.format(total / 100)}</Text></Column>
</Row>
</Section>
<Button href={downloadUrl} style={styles.button}>Download PDF Invoice</Button>
</EmailLayout>
)
}
export default InvoiceEmail
const styles = {
h1: { fontSize: "24px", fontWeight: "700", color: "#111827", margin: "0 0 16px" },
text: { fontSize: "15px", lineHeight: "1.6", color: "#374151", margin: "0 0 12px" },
metaBox: { backgroundColor: "#f9fafb", borderRadius: "8px", padding: "16px", margin: "16px 0" },
metaLabel: { fontSize: "12px", color: "#6b7280", fontWeight: "600", textTransform: "uppercase" as const, margin: "0 0 4px" },
metaValue: { fontSize: "14px", color: "#111827", margin: 0 },
metaValueLarge: { fontSize: "20px", fontWeight: "700", color: "#4f46e5", margin: 0 },
table: { width: "100%", margin: "16px 0" },
tableHeader: { backgroundColor: "#f3f4f6", borderRadius: "4px" },
tableHeaderText: { fontSize: "12px", fontWeight: "600", color: "#374151", padding: "8px 12px", textTransform: "uppercase" as const },
tableRowEven: { backgroundColor: "#ffffff" },
tableRowOdd: { backgroundColor: "#f9fafb" },
tableCell: { fontSize: "14px", color: "#374151", padding: "10px 12px" },
divider: { borderColor: "#e5e5e5", margin: "8px 0" },
totalLabel: { fontSize: "16px", fontWeight: "700", color: "#111827", padding: "8px 12px" },
totalValue: { fontSize: "16px", fontWeight: "700", color: "#111827", textAlign: "right" as const, padding: "8px 12px" },
button: { backgroundColor: "#4f46e5", color: "#fff", borderRadius: "6px", padding: "12px 24px", fontSize: "15px", fontWeight: "600", textDecoration: "none" },
}
// emails/lib/send.ts
import { Resend } from "resend"
import { render } from "@react-email/render"
import { WelcomeEmail } from "../templates/welcome"
import { InvoiceEmail } from "../templates/invoice"
import { addTrackingParams } from "./tracking"
const resend = new Resend(process.env.RESEND_API_KEY)
type EmailPayload =
| { type: "welcome"; props: Parameters<typeof WelcomeEmail>[0] }
| { type: "invoice"; props: Parameters<typeof InvoiceEmail>[0] }
export async function sendEmail(to: string, payload: EmailPayload) {
const templates = {
welcome: { component: WelcomeEmail, subject: "Welcome to MyApp — confirm your email" },
invoice: { component: InvoiceEmail, subject: `Invoice from MyApp` },
}
const template = templates[payload.type]
const html = render(template.component(payload.props as any))
const trackedHtml = addTrackingParams(html, { campaign: payload.type })
const result = await resend.emails.send({
from: "MyApp <hello@yourapp.com>",
to,
subject: template.subject,
html: trackedHtml,
tags: [{ name: "email-type", value: payload.type }],
})
return result
}
// package.json scripts
{
"scripts": {
"email:dev": "email dev --dir emails/templates --port 3001",
"email:build": "email export --dir emails/templates --outDir emails/out"
}
}
// Run: npm run email:dev
// Opens: http://localhost:3001
// Shows all templates with live preview and hot reload
// emails/i18n/en.ts
export const en = {
welcome: {
preview: (name: "string-welcome-to-myapp-name"
heading: (name: "string-welcome-to-myapp-name"
body: (days: number) => `You've got ${days} days to explore everything.`,
cta: "Confirm Email Address",
},
}
// emails/i18n/de.ts
export const de = {
welcome: {
preview: (name: "string-willkommen-bei-myapp-name"
heading: (name: "string-willkommen-bei-myapp-name"
body: (days: number) => `Du hast ${days} Tage Zeit, alles zu erkunden.`,
cta: "E-Mail-Adresse bestätigen",
},
}
// Usage in template
import { en, de } from "../i18n"
const t = locale === "de" ? de : en
// emails/lib/tracking.ts
interface TrackingParams {
campaign: string
medium?: string
source?: string
}
export function addTrackingParams(html: string, params: TrackingParams): string {
const utmString = new URLSearchParams({
utm_source: params.source ?? "email",
utm_medium: params.medium ?? "transactional",
utm_campaign: params.campaign,
}).toString()
// Add UTM params to all links in the email
return html.replace(/href="(https?:\/\/[^"]+)"/g, (match, url) => {
const separator = url.includes("?") ? "&" : "?"
return `href="${url}${separator}${utmString}"`
})
}
<head> styles; React Email handles this<Row> and <Column> from react-email, not CSS grid!important to override inline styles