email-content-guide

Codify email content rules for deliverability, compliance, and accessibility.

1|Updated Jan 18, 2026
One-click install
npx skills add https://github.com/wraps-team/skills --skill email-content-guide
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: email-content-guide
Source: https://github.com/wraps-team/skills/tree/main/skills/email-content-guide
Command: npx skills add https://github.com/wraps-team/skills --skill email-content-guide

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Writing email content that lands in the inbox is challenging due to spam filters and complex regulatory requirements. This guide provides a clear, repeatable set of rules to improve deliverability and compliance across all email types.

Core Features & Use Cases

  • Subject line optimization: concise, specific, and free of spam triggers to maximize open rates.
  • Preheader and body structure: promote scannability with accessible HTML, alt text for images, and a 60/40 text-to-image ratio.
  • Compliance and accessibility: ensures unsubscribe visibility, CAN-SPAM, GDPR, and CASL compliance, and accessible design.
  • Content types guidance: transactional, marketing, and automated onboarding scenarios with best practices for each.
  • Practical templates and copy guidance for real-world campaigns and debugging deliverability issues.

Quick Start

Create or update an email template to follow these rules for subject lines, preheader, body structure, accessibility, and unsubscribe compliance.

Frequently Asked Questions about email-content-guide

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I write email subject lines that avoid spam filters?

Email subject lines that avoid spam filters should be concise, specific, and free of spam triggers to maximize open rates and ensure reliable inbox placement.

What is the recommended text-to-image ratio for email deliverability?

The recommended text-to-image ratio for email deliverability is 60/40, using accessible HTML and alt text for images to promote scannability and prevent spam filtering.

Does my marketing email need an unsubscribe link for CAN-SPAM and GDPR compliance?

Yes, marketing emails require a visible unsubscribe link for CAN-SPAM, GDPR, and CASL compliance, ensuring your automated and campaign emails meet regulatory standards.

How do I structure transactional email content for better accessibility?

Structure transactional email content for accessibility by using accessible HTML, adding alt text for images, and ensuring a scannable body structure with a clear preheader.

What is an email preheader and how does it affect open rates?

An email preheader is the preview text following the subject line, and optimizing it alongside the body structure promotes scannability and improves overall open rates.

Why does my automated email go to spam despite following HTML rules?

Automated emails go to spam when subject lines contain spam triggers, the text-to-image ratio is unbalanced, or unsubscribe compliance is missing, despite valid HTML rules.