Update Template
update-templateUpdate email template metadata such as subject, sender, and variables. After changes, republish the template to make updates live.
Instructions
Update template metadata by ID, alias, or Resend dashboard URL (name, subject, from, html, variables, etc.). After updating a published template, use publish-template again to make the changes live. To edit TipTap content, use compose-template instead.
Note on html/text fields: Setting html or text via this tool replaces any content previously set via compose-template. This switch is lossy — some content or formatting may be lost. Prefer compose-template for content changes. If the template was composed with TipTap content, ask the user before overwriting it with raw HTML.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| id | Yes | The template ID, alias, or Resend dashboard URL (e.g. https://resend.com/templates/<id>) | |
| from | No | New sender email address. | |
| html | No | New HTML content for the template. Email HTML requirements — follow all of these without exception: STRUCTURE - Always include <!DOCTYPE html>, <html>, <head>, <body> - Layout must be table-based: <table>, <tr>, <td> — never use <div> for layout - Outer wrapper table at width="100%", inner content table at max 600px wide - Every table must have cellpadding="0" cellspacing="0" border="0" CSS - All styles must be inline (style="...") — no <style> tag, no external stylesheets - No flexbox, no grid, no CSS variables, no CSS shorthand (use padding-top not padding) - font-family must always include web-safe fallbacks (Arial, Helvetica, Georgia, sans-serif) - Always set font-size, line-height, and color explicitly on every text element IMAGES - Always set width, height, border="0", display:block on every <img> - Use absolute URLs only — no relative paths - Always include alt text LINKS & BUTTONS - Never use <button> — use <a> styled as a button inside a <td> - No <video>, <form>, or <input> elements - No JavaScript of any kind OUTLOOK COMPATIBILITY - Use bgcolor attribute on <td> alongside CSS background-color - No CSS background-image (poor Outlook support) - Add <!--[if mso]> conditionals where needed for Outlook rendering META (in <head>) - <meta charset="UTF-8"> - <meta name="viewport" content="width=device-width, initial-scale=1.0"> - <meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
| name | No | New name for the template. | |
| text | No | New plain text version of the message. Pass an empty string to disable automatic text generation. | |
| alias | No | New alias for the template. | |
| replyTo | No | New Reply-to email address(es). | |
| subject | No | New default email subject. | |
| variables | No | New array of template variables (replaces existing variables). |