Outbound Email Deliverability Audit

The problem

Managing multiple sending domains often leads to correlated configuration errors that kill reply rates. Manual lookups across dozens of domains are slow, prone to oversight, and fail to account for DNS propagation or warmup timelines.

What it does

• Performs batched lookups for SPF, DKIM, DMARC, and blacklist status across all sending domains.
• Groups failures by root cause to streamline bulk fixes across shared registrars or templates.
• Ranks technical risks while prioritizing fixes based on required warmup and propagation time.
• Maps infrastructure recovery timelines against your campaign calendar to flag unachievable launch dates.
• Generates literal DNS record values grouped by registrar for immediate copy-pasting.

Frameworks & tools

Apify (mambalabs/domain-deliverability-checker).

Why this beats prompting it yourself

General prompts treat each domain as an isolated check. This skill understands infrastructure dependencies, identifying when a single template error affects fifty domains and sequencing fixes based on the "long pole" of warmup time rather than just risk levels.

Use cases

• Auditing a massive list of dormant domains before a new cold outreach push.
• Diagnosing a sudden drop in deliverability across an entire agency sub-account.
• Sequencing DNS migrations and warmup schedules for a new product launch.
• Generating a technical remediation report for a client's IT department.

Known limitations

Requires access to an external domain deliverability checker tool for live DNS and blacklist lookups.

Most premium skills are on a weekly review cycle. Fixes and improvements ship as updates, and buyers receive release notes by email. Part of the Mambabuilt catalog. Packs and the full bundle are available at mambabuilt.com.