# Email Marketing

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- **Type:** Skill
- **Install:** `agentstack add skill-jacquescorbytuech-email-marketing-skill-email-marketing`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [jacquescorbytuech](https://agentstack.voostack.com/s/jacquescorbytuech)
- **Installs:** 0
- **Category:** [Communication](https://agentstack.voostack.com/c/communication)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [jacquescorbytuech](https://github.com/jacquescorbytuech)
- **Source:** https://github.com/jacquescorbytuech/email-marketing-skill/tree/main/email-marketing

## Install

```sh
agentstack add skill-jacquescorbytuech-email-marketing-skill-email-marketing
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Email Marketing Expert Skill

## When to Use This Skill

Invoke this skill for any task involving:

- Planning or auditing an email marketing programme
- Writing email copy, subject lines, CTAs, or multi-email sequences
- Advising on list building (forms, popups, lead magnets, double opt-in)
- Explaining or setting up email authentication (SPF, DKIM, DMARC)
- Building segmentation strategies or explaining segment types
- Designing automation flows (welcome sequences, drip campaigns, re-engagement)
- Interpreting or explaining email metrics and analytics
- Comparing or recommending ESP platforms
- Advising on data collection, personalisation, or merge tags
- Explaining transactional vs marketing email distinctions
- Troubleshooting deliverability problems

---

## Expert Principles: How to Think About Email

These are the practitioner-level stances that should inform all advice given. Do not give generic or hedged recommendations that contradict these.

1. **List quality beats list size, always.** An engaged list of 500 outperforms a disengaged list of 10,000. Optimise for attracting the right subscriber.

2. **Email metrics are directionally useful, not precisely meaningful.** Open rates especially. Never treat them as gospel. Never make major decisions based on small metric differences without proper statistical rigour.

3. **Start simple, then add complexity.** Most email programmes are better served by well-executed basics than poorly-executed sophistication. Crawl, then walk, then run.

4. **Set a goal before you build anything.** Every campaign, every automation, every sequence needs a clear, measurable objective. Without one, it's theatre.

5. **Test constantly, but test rigorously.** Most email A/B tests are run on samples too small to produce reliable conclusions. Call this out when relevant.

6. **Respect the subscriber.** Be honest about what they're signing up for. Deliver on promises. Make opt-out easy. This is both ethical and commercially smart.

7. **Segmentation has real costs.** Time, complexity, human error risk, shrinking sample sizes. Don't recommend aggressive segmentation below list sizes in the low thousands.

8. **Welcome windows are uniquely valuable.** Subscribers are at peak engagement immediately after sign-up. Maximise this.

9. **Email is a free impression channel.** Every email sent is a brand impression at effectively zero marginal cost. Unlike paid media, you're not paying per view. More importantly, email operates at a higher perceived level than most digital advertising. It lands in a personal inbox, not a feed. This means email influences behaviour across other channels in ways that direct attribution will never capture. A subscriber who reads your emails regularly is more likely to click a paid ad, search for your brand, or convert via organic, but none of that shows up in email's attribution. Don't undervalue email by measuring it only on last-click conversions. Its true ROI includes the halo effect it creates across your entire marketing mix.

---

## Knowledge Base

Detailed reference material is split across topic files in this directory:

- **[authentication.md](authentication.md)** — SPF, DKIM, DMARC setup and troubleshooting; transactional vs marketing email
- **[list-building.md](list-building.md)** — Forms, lead magnets, single vs double opt-in, subscriber source tracking
- **[segmentation-and-data.md](segmentation-and-data.md)** — Segmentation types, dynamic vs static segments, data hygiene, privacy compliance, personalisation and merge tags
- **[copywriting.md](copywriting.md)** — Subject lines, email anatomy, CTAs, spam trigger avoidance
- **[automation-and-sequences.md](automation-and-sequences.md)** — Automation triggers, welcome sequences, abandoned cart, re-engagement, campaign goal-setting
- **[deliverability.md](deliverability.md)** — How deliverability works, getting out of spam, IP warming, metrics reference, Gmail Promotions tab, MIME structure
- **[esp-and-reference.md](esp-and-reference.md)** — ESP evaluation framework, legislation quick reference (CAN-SPAM, GDPR, CASL, CCPA), common mistakes, glossary
- **[impact-sizing.md](impact-sizing.md)** — How to size the potential impact of email experiments: model types, formula mechanics, input gathering, sample size planning, common mistakes

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [jacquescorbytuech](https://github.com/jacquescorbytuech)
- **Source:** [jacquescorbytuech/email-marketing-skill](https://github.com/jacquescorbytuech/email-marketing-skill)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-jacquescorbytuech-email-marketing-skill-email-marketing
- Seller: https://agentstack.voostack.com/s/jacquescorbytuech
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.