Email marketing design with layout patterns, subject line formulas, and deliverability rules. Covers welcome sequences, promotional emails, transactional templates, and mobile optimization. Use for: email marketing, newsletter design, drip campaigns, email templates, transactional emails. Triggers: email design, email template, email marketing, newsletter design, email layout, email campaign, drip campaign, welcome email, promotional email, transactional email, email subject line, email header i
Email Design skill guides the creation of high-converting marketing emails by applying proven layout patterns, subject line formulas, and deliverability best practices. It covers key email types including welcome sequences, promotional campaigns, transactional messages, and newsletter templates, with a focus on mobile optimization and readability. The skill ensures emails are structured for maximum engagement, using single-column layouts, optimal font sizes, and clear calls to action.
It also provides actionable subject line strategies that can boost open rates by 20% or more through personalization, urgency, and curiosity, while avoiding spam triggers. By adhering to platform constraints like 600px max width and mobile-friendly designs, it helps marketers maintain consistent rendering across Gmail, Outlook, and mobile clients.
This skill is designed for email marketing specialists aiming to improve campaign performance through better design and messaging. Growth marketing leads looking to streamline drip campaign development and optimize onboarding sequences will find this skill valuable. Additionally, agency strategists responsible for delivering scalable, brand-compliant email templates to clients can use these guidelines to ensure high deliverability and engagement.
In particular, practitioners managing multi-segment promotional emails or transactional communications will benefit from the clear rules on layout, content hierarchy, and subject line formulation.
First, define the email type—welcome, promotional, transactional, or newsletter—and select an appropriate layout, typically a single column with a 600px max width to optimize for common email clients. Next, craft the subject line using tested formulas such as number plus benefit or personalized greetings, keeping length between 30-50 characters and avoiding spammy words.
Then, design the email header image or banner using consistent brand visuals sized for retina displays, ensuring it captures attention without overwhelming the message. Compose concise body copy that follows the inverted pyramid style: headline, brief value explanation, and one clear call to action. Finally, add essential footer elements like unsubscribe links and test the email across devices to confirm mobile responsiveness and deliverability.
How wide should my email design be for best compatibility? A maximum width of 600px is ideal to render correctly in Gmail, Outlook, and other major clients.
What’s the recommended font size for readability on mobile? Body fonts should be 14-16px and headings between 22-28px to ensure legibility across devices.
Can I use urgency in subject lines for better open rates? Yes, genuine urgency with a real deadline can increase opens, but avoid fake scarcity to maintain trust.
Attach this Email Design skill to any agent task involving email marketing, newsletter creation, or drip campaign setup to leverage structured layout templates and subject line formulas. Expect the agent to guide you through crafting optimized headers, body copy, and CTAs tailored to each email type. This skill will help ensure your emails meet industry standards for responsiveness and deliverability while maximizing engagement. You can then...
For broader context, see our roundup of marketing skills claude, and read Claude skills for outbound for related setup guidance.