Email Deliverability Doctor — Bundle

The problem

Your legitimate sales or marketing emails are landing in the spam folder, but you cannot figure out if the issue is your DNS records, your list quality, or your copy. Generic advice to "just write better content" fails to address the underlying technical and behavioral triggers that alert ISP bodyguards.

What it does

• Analyzes email headers and bounce messages to diagnose technical configuration failures.
• Explains SPF, DKIM, and DMARC setups with step-by-step verification checklists for domain admins.
• Identifies high-risk patterns in email drafts that trigger probabilistic spam filters before you hit send.
• Audits list-building methods to ensure sending habits align with provider reputation requirements.

Why this beats prompting it yourself

Most LLMs will try to help you "bypass" filters or use "spam-proof" tricks that actually damage your long-term reputation. This skill is hard-coded to ignore growth-hacker shortcuts, focusing instead on the diagnostic rigor of a deliverability engineer to fix root causes in your infrastructure and engagement signals.

Use cases

• Reviewing DNS records to ensure authentication protocols are correctly implemented.
• Decoding cryptic bounce-back logs to identify why specific providers are blocking you.
• Auditing cold outreach copy for spam-trigger patterns and engagement-killing phrases.
• Developing a warmup schedule for new domains or IP addresses.

Known limitations

Does not perform live DNS lookups or real-time blocklist queries. Cannot provide legal advice regarding GDPR or CAN-SPAM compliance.