# Improve Email Deliverability Workflows

Email deliverability problems can hide across DNS, reputation, list quality, and provider behavior. This skill helps Claude, Codex, and Claude Code build clear audits, triage notes, and remediation plans.

## Install

```bash
npx skillstore add sequenzy/emaildeliverabilityskill
```

## Metadata

- Status: approved
- Slug: sequenzy-emaildeliverabilityskill
- Skillstore revision: r1
- Version status: missing
- Tree hash: 4a084457fcd3f77e96ba900a54cd1b4ff529e458ea64b6d199037dc3ff76461a
- Author: Sequenzy
- GitHub username: Sequenzy
- License: MIT
- Repository: https://github.com/Sequenzy/skills/tree/main/skills/emaildeliverabilityskill
- Ref: e397ce5a135369cd6def89cb6400d013e2f68f2f
- Supported tools: Claude, Codex, Claude Code
- Audit status: complete
- Agent install advisory: allowed
- Manual install advisory: allowed
- Artifact signature: available
- Audit attestation: unavailable
- Human verification: not\_verified
- Quality score: 74
- Public page: https://skillstore.pages.dev/skills/sequenzy-emaildeliverabilityskill
- Manifest: https://skillstore.pages.dev/api/skills/sequenzy-emaildeliverabilityskill/manifest

## Capabilities

- Classifies deliverability issues such as authentication failure, bounce spikes, complaint spikes, spam placement, throttling, blocklists, and engagement decay.
- Guides evidence collection by sending domain, provider, segment, campaign, and time window.
- Reviews SPF, DKIM, DMARC, tracking domains, bounce domains, alignment, and recent DNS changes.
- Checks list acquisition, consent, suppression, frequency, reactivation, and recent imports for reputation risk.
- Builds staged remediation plans with stop-loss thresholds, monitoring cadence, and action owners.
- Requires explicit approval before DNS edits, suppression changes, imports, provider migrations, or production throttling.

## Use Cases

- Audit Domain Authentication: Review SPF, DKIM, DMARC, tracking, bounce, and alignment evidence before a campaign or migration.
- Triage Reputation Incidents: Separate complaint, bounce, blocklist, provider, and list-quality causes before choosing a remediation path.
- Plan Controlled Sending Ramps: Create warmup schedules with monitoring cadence, stop-loss thresholds, and explicit approval gates.

## Prompt Templates

### Audit DNS Authentication

```
Use $emaildeliverabilityskill to review SPF, DKIM, DMARC, tracking domain, and bounce domain status. Separate missing records from alignment failures.
```

### Triage Complaint Spike

```
Use $emaildeliverabilityskill to analyze a complaint spike by provider, campaign, segment, consent source, recent imports, and time window. Recommend pause and resume thresholds.
```

### Build Warmup Plan

```
Use $emaildeliverabilityskill to create a warmup plan tied to volume, complaint rate, bounce rate, engagement, and mailbox provider response.
```

### Design Recovery Runbook

```
Use $emaildeliverabilityskill to build a recovery runbook covering blocklists, bounces, complaints, suppression review, owner assignments, monitoring, and approval gates.
```

## Limitations

- It does not send email, import contacts, edit DNS, or change suppression rules automatically.
- It needs accurate data from email platforms, postmaster tools, blocklist checks, and campaign reports.
- It does not replace legal review for consent, unsubscribe, or complaint handling obligations.
- Recommendations depend on current sender history and provider-specific evidence.

## Best Practices

- Provide domain, provider, segment, campaign, and time-window data before requesting remediation.
- Keep live DNS, suppression, import, migration, and automation changes behind explicit approval.
- Segment complaint and bounce rates by source and campaign before changing content or volume.

## Anti Patterns

- Treating all mailbox providers, campaigns, and contact sources as one stream.
- Increasing send volume before resolving complaint, bounce, or authentication issues.
- Editing DNS or suppression rules without an owner, approval record, and rollback plan.

## Security Audit

- Audited at: 2026-07-06T19:47:57.024\+00:00
- Summary: Static analysis reported no suspicious patterns across this prompt-only skill. Manual review found no prompt injection, code execution, network access, credential handling, or unsafe autonomous action intent. The skill requires explicit approval for high-risk email system changes.

## Stats

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- Downloads: 5
- Favorites: 0
- Popularity score: 0