Email Template Creator is for building a message once and reusing it for every recipient after that. The reuse comes from merge fields: anywhere you write a placeholder in double braces, such as {{firstName}} or {{company}}, the creator detects it in both the subject and the body and adds an input for it. The preview tab then shows the message with those values filled in, which is how you catch an awkward sentence before it goes out to a list. Five starting points are included, covering the message types most teams write repeatedly: a welcome email for new signups, a follow-up after a conversation, a monthly newsletter with a headline block and an unsubscribe line, an invoice notice with amount, due date and payment link, and a blank canvas when none of those fit. Templates are edited as ordinary text, so there is no block palette to learn. When the wording is settled, copy it in whichever form your workflow needs: plain text with the subject line on top for pasting into a mail client, or the full HTML document for a campaign platform. Keep the copied text in a notes file and you have a template library that costs nothing to maintain.
Email HTML development is uniquely challenging because email clients use widely different rendering engines with varying levels of CSS and HTML support. Microsoft Outlook (still the dominant email client in enterprise environments) renders HTML using Microsoft Word's layout engine, which supports only a fraction of modern CSS. This means CSS flexbox, grid, and many positioning properties simply do not work in Outlook, requiring table-based fallbacks that web developers stopped using in the early 2000s. The Email Template Builder writes those table-based fallbacks for you: a full-width background table holding a single 600 pixel content table, with every style declared inline on the element rather than in a stylesheet. Responsive email design (adapting layout for mobile versus desktop) usually requires media queries, which most modern email clients support but Outlook does not. The builder avoids that dependency instead of working around it, by keeping the body to a single column at a width that already fits a phone screen, so there is nothing that needs to reflow and the layout reads correctly even in clients with no media query support at all. Beyond technical compatibility, email template design has well-established best practices. A single-column layout performs better on mobile than multi-column layouts. A clear call-to-action button with high color contrast outperforms text links for click-through rates. Images should include descriptive alt text because many email clients block images by default, and a significant portion of recipients will read the email with images disabled. Pre-header text (the preview text visible in inbox list views) should be crafted to complement the subject line and increase open rates.