Which mailbox providers does it analyze?

It provides guidance for all major providers including Gmail (Postmaster), Microsoft (SNDS), Yahoo, and enterprise filters like Barracuda.

How does this skill help with spam folder issues?

It provides a diagnostic playbook to identify whether the issue stems from technical authentication gaps, poor sender reputation, or list hygiene problems.

Is this skill relevant for new sending domains?

Absolutely. It contains specific templates for IP and domain warmups to help you build a positive reputation from scratch.

Can it help me set up DMARC or SPF?

Yes, it includes frameworks for validating and auditing infrastructure settings to ensure proper alignment and authentication.

Does it support international email regulations?

The skill includes compliance checklists for major global standards including GDPR, CASL, and CAN-SPAM.

Email Deliverability Ops

Name: Email Deliverability Ops
Author: gtmagents

bygtmagents

•

Marketing Automation

Optimizes email inbox placement and sender reputation through technical audits and structured remediation playbooks.

The Deliverability Operations skill equips Claude with specialized knowledge to investigate and resolve email delivery issues. It provides a comprehensive framework for monitoring sender reputation via Google Postmaster and SNDS, auditing infrastructure settings like SPF, DKIM, and DMARC, and managing list hygiene. Whether you are troubleshooting a sudden drop in engagement or preparing for a high-volume IP warmup, this skill offers the diagnostic worksheets and compliance checklists necessary to ensure your messages reach the inbox.

Key Features

01Structured IP and domain warmup tracking templates

0229 GitHub stars

03List health analysis and engagement-based segmentation strategies

04Technical infrastructure auditing for SPF, DKIM, DMARC, and BIMI

05Comprehensive reputation monitoring across major ISPs and providers

06Global compliance checklists for GDPR, CAN-SPAM, and CASL

Use Cases

01Diagnosing and remediating sudden spikes in spam folder placement

02Planning and tracking a safe volume ramp for new sending infrastructure

03Executing a technical audit of sending domains and authentication protocols

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add gtmagents/gtm-agents deliverability-ops

For use in Claude.ai and ChatGPT

Download Skill