email-deliverability SKILL.md skillA
email-deliverability from leadmagic/gtm-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add leadmagic/gtm-skills/email-deliverability@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- leadmagic/gtm-skills
- Path
skills/outbound/email-deliverability/SKILL.md- Versions recorded
- 6
- Latest version
- v1.0.0, committed Oct 1, 2026
- First version recorded
- Jun 8, 2026
- Size
- 22,353 bytes
- Repository stars
- 76
- License
- MIT
Sets up and monitors email deliverability infrastructure including SPF, DKIM, DMARC configuration, warmup strategy, reputation monitoring, bounce and complaint handling, and ongoing deliverability health. Use when the user asks about email deliverability, SPF/DKIM/DMARC setup, warmup schedules, bounce rate troubleshooting, spam placement issues, or domain reputation. Activates on phrases like "improve deliverability," "emails going to spam," "warmup my domain," "DNS setup for cold email…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Email Deliverability ## Overview Deliverability is the foundation on which all outbound email rests. Without it, the best copy, the most sophisticated sequence, and the highest-quality list produce zero pipeline — because the email never reaches the inbox. The inbox placement rate is the single most important metric in cold email, and it is entirely a function of technical configuration plus ongoing reputation management. This skill produces a deliverability setup and monitoring plan: DNS authentication configuration (SPF, DKIM, DMARC), a 4-week warmup schedule with per-week volume targets, reputation monitoring protocols, bounce and complaint handling procedures, and a deliverability health dashboard definition. It covers the full lifecycle from initial setup through ongoing maintenance. The non-obvious rule: most deliverability problems are not technical. They are behavioral. Sending too many emails too fast, sending to unverified addresses, sending from a primary domain, or ignoring bounce spikes will defeat even perfect DNS configuration. Deliverability is 30% setup and 70% discipline. CRITICAL: Never describe validation internals. Email validation is a blackbox …
Read the whole file at its exact version.
How to install
mdr add leadmagic/gtm-skills/email-deliverability@sha256:d8905d2a8a0e33ddThe line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_tqqfzqfisgkew54i)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Jun 8, 2026 and Oct 1, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-10-01 | ca0d2ec | 22,353 B | A | view · diff |
| v1.0.0 | 2026-09-02 | a19750a | 22,429 B | A | view · diff |
| v1.0.0 | 2026-06-10 | e030e67 | 22,423 B | A | view · diff |
| v1.0.0 | 2026-06-10 | 17b6e1f | 22,347 B | A | view · diff |
| v1.0.0 | 2026-06-10 | 9f00d65 | 22,348 B | A | view · diff |
| v1.0.0 | 2026-06-08 | 07ce0cd | 20,827 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (22353 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
leadmagic/gtm-skills · 76 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_tqqfzqfisgkew54i GET https://markdownregistry.com/api/v1/resolve?ref=leadmagic/gtm-skills/email-deliverability GET https://markdownregistry.com/api/v1/blob/d8905d2a8a0e33ddfee231c68ac1cd1e72f58351e665e1ee63dc52cc7413fe51
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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