email-deliverability

Name: email-deliverability
Availability: InStock
Author: MadAppGang

Diagnose email deliverability issues using SPF, DKIM, and DMARC records.

7|4|Updated Feb 26, 2026

Search Tags:#marketing #email #deliverability #spam #sender reputation #inbox placement

Ready to run

npx skills add https://github.com/MadAppGang/magus --skill email-deliverability

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: email-deliverability
Source: https://github.com/MadAppGang/magus/tree/main/plugins/instantly/skills/email-deliverability
Command: npx skills add https://github.com/MadAppGang/magus --skill email-deliverability

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps users understand and improve their email deliverability, ensuring emails reach the inbox rather than the spam folder.

Core Features & Use Cases

Best Practices: Provides guidelines on sender reputation, content quality, technical setup (SPF, DKIM, DMARC), and list hygiene.
Troubleshooting: Offers diagnostic steps and remediation for common issues like high bounce rates, low open rates, and spam complaints.
Use Case: A marketing manager is experiencing a sudden drop in email open rates. They can use this Skill to diagnose potential causes related to sender reputation or content, and follow the provided steps to recover.

Quick Start

Use the email-deliverability skill to check the status of SPF, DKIM, and DMARC records for the domain 'example.com'.

Frequently Asked Questions about email-deliverability

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

FAQPage Schema

Why are my marketing emails going to the spam folder instead of the inbox?▼

Email deliverability issues often stem from poor sender reputation, missing DNS records, or spam complaints. This Skill diagnoses these factors, checking SPF, DKIM, and DMARC configurations to troubleshoot why emails hit the spam folder.

How do I set up SPF, DKIM, and DMARC records to improve inbox placement?▼

To improve inbox placement, configure SPF, DKIM, and DMARC DNS records for your sending domain. This Skill provides technical setup guidelines and best practices for authenticating your emails to pass spam filters.

What is the best way to recover from a sudden drop in email open rates?▼

Recover from a sudden open rate drop by diagnosing sender reputation, content quality, and list hygiene. This Skill offers troubleshooting steps and recovery strategies to identify and fix the underlying deliverability problems.

How does list hygiene affect email deliverability and sender reputation?▼

List hygiene directly impacts email deliverability by removing invalid addresses that cause high bounce rates and damage sender reputation. This Skill provides best practices for maintaining clean lists to reduce spam complaints.

Can I use this to troubleshoot high bounce rates in my email campaigns?▼

Yes, you can troubleshoot high bounce rates by following the diagnostic steps and remediation strategies provided. The Skill helps identify whether bounces stem from technical DNS misconfigurations or poor list hygiene.