email-deliverability

Diagnose SPF, DKIM, and DMARC authentication to fix email deliverability issues.

Updated Aug 23, 2026
One-click install
npx skills add https://github.com/Samuelca6399/AbsolutelySkilled --skill email-deliverability-samuelca6399
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: email-deliverability
Source: https://github.com/Samuelca6399/AbsolutelySkilled/tree/main/skills/email-deliverability
Command: npx skills add https://github.com/Samuelca6399/AbsolutelySkilled --skill email-deliverability-samuelca6399

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps you troubleshoot why your emails are landing in spam, failing authentication, or being rejected, and guides you to restore reliable inbox delivery.

Core Features & Use Cases

  • Authenticate email with SPF, DKIM, and DMARC: Ensure your DNS TXT records and signing setup align with the From domain so mailbox providers trust your messages.
  • Stabilize sender reputation and behavior: Use warm-up plans, bounce handling, and continuous monitoring to prevent reputation damage and blocklisting.
  • Run structured delivery diagnosis: Follow an order-of-operations checklist (auth → blocklists → reputation → content → engagement → infrastructure) to isolate root causes quickly.

Quick Start

Tell your AI agent to diagnose your deliverability by checking SPF, DKIM, and DMARC alignment and then recommending the next configuration change based on your symptoms.

Frequently Asked Questions about email-deliverability

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
Why are my emails going to spam and how do I fix email deliverability?

Emails going to spam often fail SPF, DKIM, or DMARC authentication. You can fix email deliverability by running a structured diagnosis of your DNS records, sender reputation, and bounce handling rules to isolate and resolve the root cause.

How do I set up DMARC, SPF, and DKIM authentication for my domain?

To configure email authentication, you need to align your DNS TXT records and cryptographic signing setup with your From domain. Following DMARC deployment phases ensures mailbox providers trust your messages and prevents spoofing.

What is the best way to warm up a new IP address or domain for sending email?

The best way to warm up a new IP or domain is to follow a structured reputation-safe sending plan. Gradually increasing volume while monitoring bounce rates and engagement metrics prevents reputation damage and blocklisting.

How do I get delisted from an email blocklist after a bounce surge?

To get delisted from an email blocklist, you must first stop the bounce surge by applying proper bounce and Feedback Loop (FBL) handling rules. Once sender behavior stabilizes, you can submit a delisting request to the specific blocklist provider.

What is the correct order of operations for troubleshooting inbox placement problems?

The correct order of operations for troubleshooting inbox placement follows a structured checklist: authentication first, then blocklists, sender reputation, content, engagement metrics, and finally infrastructure. This isolates root causes quickly.