leadmagic/gtm-skills · skills/outbound/email-deliverability/SKILL.md

email-deliverability skillA

email-deliverability is agent-read markdown (skill) from leadmagic/gtm-skills: 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," "bounc.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add leadmagic/gtm-skills/email-deliverability@v1.0.0
Exact content
mdr add leadmagic/gtm-skills/email-deliverability@sha256:8dd6cd4255fc23b0

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_tqqfzqfisgkew54i.svg)](https://markdownregistry.com/a/art_tqqfzqfisgkew54i)

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Versions

versioncommittedcommitsizeaudit
v1.0.0 latest2026-09-02 a19750a 22,429 BA view · diff
v1.0.02026-06-10 e030e67 22,423 BA view · diff
v1.0.02026-06-10 17b6e1f 22,347 BA view · diff
v1.0.02026-06-10 9f00d65 22,348 BA view · diff
v1.0.02026-06-08 07ce0cd 20,827 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (22429 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

GitHub

leadmagic/gtm-skills · 52 stars · license MIT · pushed 2026-09-07 · 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/8dd6cd4255fc23b01e8aee7a5c30660d34339f2f2df071d99042beae54662bf9

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.