Hi {{clientName}},
Invoice {{invoiceId}} for {{amount}} is ready.
View Invoice Preview Invoice Ready Hi Acme Corp, Invoice #1247 for $15,000 is ready. View Invoice Variables:clientNameinvoiceIdamountviewUrl ## Professional email templates Everything you need to create, manage, and deploy email templates at scale. [### Handlebars Syntax Use {{variable}} placeholders, conditionals with {{#if}}, and loops with {{#each}} for dynamic content. Learn the syntax →](https://eternalengineos.io/features/postframe/templates/handlebars-syntax/)[### Live Preview See the rendered template beside the editor as you type, in visual, HTML, split or plain-text mode. See the live preview →](https://eternalengineos.io/features/postframe/templates/live-preview/)[### Version History Every save bumps the version number, shown on the list and in preview, so you always know which revision is sending. See version numbers →](https://eternalengineos.io/features/postframe/templates/version-history/)[### Responsive Design Gallery templates are single-column, table-based layouts with a mobile viewport tag; React Email templates render to inline-styled HTML. See responsive layouts →](https://eternalengineos.io/features/postframe/templates/responsive-design/)[### Test Sends Send the saved template to your own inbox through the real pipeline, with a [TEST] subject prefix, before it goes live. See test sends →](https://eternalengineos.io/features/postframe/templates/test-sends/)[### Template Library Eight starting points — welcome, newsletter, promotion, announcement, receipt, invoice, appointment reminder, win-back — ready to duplicate and rebrand. Browse the gallery →](https://eternalengineos.io/features/postframe/templates/template-library/) Questions ## Templates, answered Which template languages does PostFrame support? Handlebars, with a fixed set of safe helpers (eq, neq, gt, lt, and, or, not, uppercase, lowercase, truncate, formatDate), and React Email, where you write JSX that PostFrame compiles and renders in a sandbox. How do I use a template when sending? Pass template_id and a template_variables object on the send call. PostFrame renders the subject and body server-side and queues the finished message. Can I roll back a template? PostFrame keeps the version number, not the previous body. Duplicate a template before a large edit if you want a safe copy; the Duplicate action creates it in your workspace. How do I test a template before it goes live? Save it, click Send Test in the editor, and enter an address. It goes out through your real provider with a [TEST] subject prefix, so what lands is what customers get. ## Run your business from one place. Five plans, seventeen launch apps, one dashboard. Set up in under 5 minutes — change tiers any time. [Start free$0 forever • No card • Upgrade any time](https://app.eternalengineos.io/signup?plan=free&interval=annual)[Talk to Sales](https://eternalengineos.io/contact/) From $0 · Basic $9.95/mo · Save 20% on annual billing · Upgrade or downgrade any time MonthlyAnnual — Save 20% ### Starter $9$7/mosave $22/yr Get started with transactional email. - 5,000 emails / month - 1 sending domain - SPF, DKIM & DMARC verification - Open & click tracking - 7-day data retention - Ticket support [Choose Starter](https://app.eternalengineos.io/signup?addon=postframe&tier=0) MOST POPULAR ### Growth $24$19/mosave $58/yr For growing teams and products. - 10,000 emails / month - 3 sending domains - SPF, DKIM & DMARC verification - Open & click tracking - Webhooks & API access - 14-day data retention - Ticket support [Choose Growth](https://app.eternalengineos.io/signup?addon=postframe&tier=1) ### Pro $69$55/mosave $166/yr For high-volume senders. - 50,000 emails / month - Unlimited sending domains - SPF, DKIM & DMARC verification - Open & click tracking - Webhooks & API access - 30-day data retention - Dedicated IP add-on - Priority support [Choose Pro](https://app.eternalengineos.io/signup?addon=postframe&tier=2) ### Enterprise $149$119/mosave $358/yr For organizations at scale. - 200,000 emails / month - Unlimited sending domains - SPF, DKIM & DMARC verification - Open & click tracking - Webhooks & API access - 90-day data retention - 1 dedicated IP included - Custom SLA - Priority support [Choose Enterprise](https://app.eternalengineos.io/signup?addon=postframe&tier=3) **PostFrame is billed separately, on top of any EternalEngine plan.**Every base tier ([Team](https://app.eternalengineos.io/signup?plan=starter&interval=annual), [Pro](https://app.eternalengineos.io/signup?plan=professional&interval=annual), [Business](https://app.eternalengineos.io/signup?plan=business&interval=annual)) ships with PostFrame at sensible defaults. The add-on tiers above buy higher email volume, longer retention, and dedicated IPs. Prices shown do not include applicable tax.