Deliverability Operations Skill

When to Use

• Inbox placement drops or spam-folder complaints.
• Preparing for IP/domain warmups or volume ramps.
• Auditing authentication, feedback loops, or compliance settings.

Framework

Signals to Monitor

1. Engagement – opens, clicks, unsubscribes, spam complaints by ISP.
2. Reputation – Google Postmaster, Microsoft SNDS, Talos/Barracuda, Spamhaus, Validity.
3. Infrastructure – SPF/DKIM/DMARC alignment, BIMI, TLS, reverse DNS, dedicated vs shared IP.
4. List Health – bounce types, spam traps, opt-in provenance, inactivity thresholds.

Playbook Steps

1. Snapshot key metrics over last 7/30 days.
2. Identify affected mailbox providers (Gmail, Outlook, Yahoo, etc.).
3. Validate authentication + sending domains.