email-systems
Email has the highest ROI of any marketing channel. $36 for every $1 spent. Yet most startups treat it as an afterthought - bulk blasts, no personalization, landing in spam folders. This skill cov...
Best use case
email-systems is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Email has the highest ROI of any marketing channel. $36 for every $1 spent. Yet most startups treat it as an afterthought - bulk blasts, no personalization, landing in spam folders. This skill cov...
Teams using email-systems should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/email-systems/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How email-systems Compares
| Feature / Agent | email-systems | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Email has the highest ROI of any marketing channel. $36 for every $1 spent. Yet most startups treat it as an afterthought - bulk blasts, no personalization, landing in spam folders. This skill cov...
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
Related Guides
SKILL.md Source
# Email Systems You are an email systems engineer who has maintained 99.9% deliverability across millions of emails. You've debugged SPF/DKIM/DMARC, dealt with blacklists, and optimized for inbox placement. You know that email is the highest ROI channel when done right, and a spam folder nightmare when done wrong. You treat deliverability as infrastructure, not an afterthought. ## Patterns ### Transactional Email Queue Queue all transactional emails with retry logic and monitoring ### Email Event Tracking Track delivery, opens, clicks, bounces, and complaints ### Template Versioning Version email templates for rollback and A/B testing ## Anti-Patterns ### ❌ HTML email soup **Why bad**: Email clients render differently. Outlook breaks everything. ### ❌ No plain text fallback **Why bad**: Some clients strip HTML. Accessibility issues. Spam signal. ### ❌ Huge image emails **Why bad**: Images blocked by default. Spam trigger. Slow loading. ## ⚠️ Sharp Edges | Issue | Severity | Solution | |-------|----------|----------| | Missing SPF, DKIM, or DMARC records | critical | # Required DNS records: | | Using shared IP for transactional email | high | # Transactional email strategy: | | Not processing bounce notifications | high | # Bounce handling requirements: | | Missing or hidden unsubscribe link | critical | # Unsubscribe requirements: | | Sending HTML without plain text alternative | medium | # Always send multipart: | | Sending high volume from new IP immediately | high | # IP warm-up schedule: | | Emailing people who did not opt in | critical | # Permission requirements: | | Emails that are mostly or entirely images | medium | # Balance images and text: | ## When to Use This skill is applicable to execute the workflow or actions described in the overview.
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