email-best-practices skillA
email-best-practices is agent-read markdown (skill) from asymmetric-al/core: Use when building email features, emails going to spam, high bounce rates, setting up SPF/DKIM/DMARC authentication, implementing email capture, ensuring compliance (CAN-SPAM, GDPR, CASL), handling webhooks, retry logic, or deciding transactional vs marketing..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# 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 issues | [Deliverability](./references/deliverability.md) |
| Build password reset, OTP, confirmations | [Transactional Emails](./references/transactional-emails.md) |
…Read the whole file at its exact version.
How to install
mdr add asymmetric-al/core/email-best-practices@v1.0.2mdr add asymmetric-al/core/email-best-practices@sha256:71e78a0978cd60cePin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_dkkajlu5yworr76b)
1 badge views in 30 days
Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.2 latest | 2026-05-26 | 54acd2a | 3,637 B | A | view · diff |
| git:20260218.048cbae | 2026-02-18 | 048cbae | 3,755 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3637 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
asymmetric-al/core · 383 stars · license AGPL-3.0 · pushed 2026-09-23 · branch develop
API
GET https://markdownregistry.com/api/v1/artifacts/art_dkkajlu5yworr76b GET https://markdownregistry.com/api/v1/resolve?ref=asymmetric-al/core/email-best-practices GET https://markdownregistry.com/api/v1/blob/71e78a0978cd60ce3f6f936b3258a26c9d1706edb6843c9c71bedb716c457af7
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