1 · Receipt

Sent the moment an order is paid. Line items, totals, delivery address, one button to the order page.

2 · Shipped Pro

When the parcel leaves. Carrier, estimate, tracking number, a three-step progress bar built from table cells.

3 · Password reset Pro

One button, a plain-text fallback link, an expiry, and the "if this wasn't you" paragraph with where the request came from.

4 · Verify email Pro

Confirm-address email with both a button and a six-digit code in a monospace block, for apps that ask for either.