Email Deliverability: Audit, Diagnosis & Fix

Your Setup — Fill These In for Better Results

This skill gives generic advice by default. Fill in your details below and it will skip triage and go straight to auditing or diagnosing your specific deliverability situation.

• Sending domain(s): [e.g., mail.yourcompany.com]
• ESP / sending platform: [e.g., SendX, Mailchimp, custom MTA]
• Monthly send volume: [e.g., 500,000]
• IP type: [shared / dedicated / mixed]
• Domain age: [e.g., 3 years]
• Current open rate by provider: [e.g., Gmail 22%, Microsoft 18%, Yahoo 25%]
• Current bounce rate: [e.g., 0.8%]
• Current complaint rate: [e.g., 0.05%]
• Recent changes: [e.g., migrated ESPs last month, added new IP, none]

This skill captures the SendPost Way — a diagnostic methodology built from managing IP pools processing 10-18 million messages daily and consulting for ESPs handling billions of emails. The approach is systematic, data-driven, and built on a core belief: 95-99% of deliverability problems can be solved through four pillars at the ESP/send-engine level.

How to Use This Skill