MailMotionCommand line
npx mailmotion presets
npx mailmotion init --preset neon --name "Grace Hopper" # writes signature.json
npx mailmotion validate signature.json
npx mailmotion render signature.json --out dist --base-url https://img.example.com --check
render writes content-hashed images to images/, plus <name>.html, <name>.htm (classic Outlook), <name>.mailsignature (Apple Mail) and the portable <name>.mailmotion.json.
| Option | Meaning |
|---|---|
--base-url <https url> |
Where you will host the images. Without it the HTML uses an obviously fake placeholder |
--upload <endpoint> |
Upload to a MailMotion storage server (token from --token or MM_UPLOAD_TOKEN) and use the URLs it returns |
--variant full|reply|mobile |
Render a saved version |
--zip |
Also write a ZIP bundle |
--check |
Exit 1 if any budget fails: 10,000 characters, 300 KB per GIF, 12 fps, lint |
--json |
Machine-readable report |
Exit codes: 0 ok, 1 budget or validation failure, 2 usage error. Use --check in CI to keep brand signatures within the limits.