inbox-setup SKILL.md skillA
inbox-setup 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/inbox-setup@v1.0.1Pins v1.0.1 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/inbox-setup/SKILL.md- Versions recorded
- 6
- Latest version
- v1.0.1, committed Oct 1, 2026
- First version recorded
- Jun 10, 2026
- Size
- 8,574 bytes
- Repository stars
- 76
- License
- MIT
Set up cold email inbox infrastructure from scratch — Google Workspace, Microsoft 365, and Azure/Entra inbox provisioning, DNS authentication, domain buying, warmup, and cost optimization. Use when setting up sending infrastructure, buying domains, provisioning mailboxes, or scaling cold email sending capacity. Triggers on: "inbox setup", "email infrastructure", "buy domains", "Google Workspace inbox", "Microsoft inbox", "Azure inbox", "cold email setup", "sending infrastructure…
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
# Inbox Setup ## Overview Cold email infrastructure is the foundation underneath every outbound motion. Get it wrong and your copy, targeting, and offer don't matter — you're in spam. This skill covers DIY inbox provisioning across Google Workspace, Microsoft 365, and Azure/Entra, plus DNS authentication, warmup, and infrastructure scaling. ## When to Use - "Set up cold email inboxes" - "Buy domains for cold outreach" - "Provision Google Workspace mailboxes" - "Set up Microsoft 365 for cold email" - "Configure DNS for sending domains" - "Scale my sending infrastructure" - "How many inboxes do I need?" ## Authoritative Foundations - **Google Bulk Sender Guidelines** — sender authentication, low spam complaint rates, and authenticated alignment are baseline requirements for sustainable outbound. Domain isolation is non-negotiable: never send cold from the primary business domain; use separate sending domains with independent reputation. - **Microsoft Email Sender Guidelines** — maintain authenticated mail, clean lists, low complaints, and conservative volume ramps to protect sender reputation. - **Eric Nowoslawski (Growth Engine X)** — inbox infrastructure at scale …
Read the whole file at its exact version.
How to install
mdr add leadmagic/gtm-skills/inbox-setup@sha256:9329ef10fc89e2d3The line at the top of this page pins the label v1.0.1, 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_jomduriuukuy2c5c)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Jun 10, 2026 and Oct 1, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.1 latest | 2026-10-01 | ca0d2ec | 8,574 B | A | view · diff |
| v1.0.1 | 2026-09-07 | 92666c2 | 8,604 B | A | view · diff |
| v1.0.0 | 2026-09-02 | a19750a | 8,606 B | A | view · diff |
| v1.0.0 | 2026-06-10 | e030e67 | 8,600 B | A | view · diff |
| v1.0.0 | 2026-06-10 | 17b6e1f | 8,600 B | A | view · diff |
| v1.0.0 | 2026-06-10 | 9f00d65 | 8,601 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 (8574 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_jomduriuukuy2c5c GET https://markdownregistry.com/api/v1/resolve?ref=leadmagic/gtm-skills/inbox-setup GET https://markdownregistry.com/api/v1/blob/9329ef10fc89e2d3ad6bdd59386e7106e7f54c7661c14d3832f3c9a4776d2587
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.