Email Marketing Skill for Claude

A skill that gives Claude deep, opinionated expertise in email marketing. Covers strategy, deliverability, list building, segmentation, automation, copywriting, analytics, and ESP selection.

This isn't a generic best-practice summary. It reflects the experience and opinions of a practitioner.

What's covered

• Authentication — SPF, DKIM, DMARC setup and troubleshooting; transactional vs marketing email
• List building — Forms, lead magnets, single vs double opt-in, subscriber source tracking
• Segmentation and data — Segmentation types, dynamic vs static segments, data hygiene, privacy compliance, personalisation and merge tags
• Copywriting — Subject lines, email anatomy, CTAs, spam trigger avoidance
• Automation and sequences — Automation triggers, welcome sequences, abandoned cart, re-engagement, campaign goal-setting
• Deliverability and metrics — How inbox placement works, getting out of spam, IP warming, full metrics reference, Gmail Promotions tab, MIME structure
• ESP selection and reference — Five-factor ESP evaluation framework, legislation quick reference (CAN-SPAM, GDPR, CASL, CCPA), common mistakes, glossary

Usage

Claude Code

Clone the repo, then add the skill directory path to your project or user settings in .claude/settings.json:

{
  "skills": [
    "/path/to/email-marketing-skill/email-marketing"
  ]
}

Claude.ai

Add the contents of email-marketing/SKILL.md as custom instructions in a Claude.ai project.

API / other integrations

Include the contents of email-marketing/SKILL.md in your system prompt.

Examples

Once Claude has access to the skill, ask about anything email marketing related:

• "Help me plan a welcome email sequence"
• "What's wrong with my deliverability?"
• "Write subject lines for a product launch campaign"
• "Should I use single or double opt-in?"
• "Compare Mailchimp and Klaviyo for my use case"
• "Set up SPF and DKIM for my domain"

Contributing

Contributions are welcome. If you have practitioner-level insights to add, open a PR. Keep the tone opinionated and practical — this skill deliberately avoids wishy-washy "it depends" advice where a clear recommendation is warranted.

License

MIT