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email-best-practices

email-best-practices

github.com/resendDevelopment20713.7k installsUpdated 2w ago
Repository

About email-best-practices

email-best-practices is a guidance skill for developers building reliable, compliant, user-friendly email. It covers the email lifecycle, from consent and deliverability to sending, event handling, and accessibility.

Key features

  1. 01Email deliverability and DNS authentication
  2. 02Transactional email planning and implementation
  3. 03Consent collection and compliance guidance
  4. 04Retry and idempotent sending
  5. 05Webhooks, bounces, and suppression management
  6. 06Email accessibility checks

Use cases

  1. 01Troubleshooting messages sent to spam
  2. 02Planning password reset and verification emails
  3. 03Building compliant marketing email signup
  4. 04Handling delivery events and bounces

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/resend/resend-skills --skill email-best-practices

After installing, type/email-best-practicesin Claude Code to confirm it loaded.

Bundled files

References and scripts installed along with SKILL.md.

references/
accessibility.md
compliance.md
deliverability.md
email-capture.md
email-types.md
list-management.md
marketing-emails.md
sending-reliability.md
transactional-email-catalog.md
transactional-emails.md
webhooks-events.md

Details

From the project README

Email Best Practices

Guidance for building deliverable, compliant, user-friendly emails.

Architecture Overview

[User] → [Email Form] → [Validation] → [Double Opt-In]
                                              ↓
                                    [Consent Recorded]
                                              ↓
[Suppression Check] ←──────────────[Ready to Send]
        ↓
[Idempotent Send + Retry] ──────→ [Email API]
                                       ↓
                              [Webhook Events]
                                       ↓
              ┌────────┬────────┬─────────────┐
              ↓        ↓        ↓             ↓
         Delivered  Bounced  Complained  Opened/Clicked
                       ↓        ↓
              [Suppression List Updated]
                       ↓
              [List Hygiene Jobs]

Quick Reference

Need to...See
Set up SPF/DKIM/DMARC, fix spam issuesDeliverability
Build password reset, OTP, confirmationsTransactional Emails
Plan which emails your app needsTransactional Email Catalog
Build newsletter signup, validate emailsEmail Capture
Send newsletters, promotionsMarketing Emails
Ensure CAN-SPAM/GDPR/CASL complianceCompliance
Decide transactional vs marketingEmail Types
Handle retries, idempotency, errorsSending Reliability
Process delivery events, set up webhooksWebhooks & Events
Manage bounces, complaints, suppressionList Management
Make emails accessible (screen readers, alt text, contrast)Accessibility

Start Here

New app? Start with the Catalog to plan which emails your app needs (password reset, verification, etc.), then set up Deliverability (DNS authentication) before sending your first email.

Spam issues? Check Deliverability first—authentication problems are the most common cause. Gmail/Yahoo reject unauthenticated emails.

Marketing emails? Follow this path: Email Capture (collect consent) → Compliance (legal requirements) → Marketing Emails (best practices).

Production-ready sending? Add reliability: Sending Reliability (retry + idempotency) → Webhooks & Events (track delivery) → List Management (handle bounces).

Accessibility? Most emails fail basic accessibility checks. See Accessibility for lang/dir, presentational tables, headings, alt text, <title>, and contrast.

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