deliverability-incident-response

Installation
SKILL.md

Deliverability Incident Response

Things break. When they do, you need a playbook — not panic. This skill is the triage decision tree.

The five incident types

Symptom Most likely cause First action Fix time
Reply rate dropped sharply Deliverability — emails in spam Run spam placement test 1-14 days
Bounce rate spiked >3% Bad list OR domain reputation Check bounce types 1-3 days
Domain blacklisted Shared IP bad actor OR your domain got flagged Check blacklists, rotate if needed 7-30 days
Inbox blocked in warmup Warmup network flagged sending patterns Pause, investigate, maybe replace 1-7 days
Gmail marking as promotional Content triggers (links, images, HTML) Simplify content 1-3 days

Decision tree: "my reply rate dropped"

Step 1: Quantify the drop

Installs
15
GitHub Stars
392
First Seen
Apr 30, 2026
deliverability-incident-response — growthenginenowoslawski/coldoutboundskills