---
title: "Improve your email domain security settings · Lenexa Learn"
description: "One person asked Claude to review their domain setup. It suggested adding DMARC and then set it up."
url: https://www.lenexa.ai/learn/use-cases/improve-your-email-domain-security-settings/
site: "Lenexa Learn"
---

Software & DevOps

# Improve your email domain security settings

One person asked Claude to review their domain setup. It suggested adding DMARC and then set it up.

## Steps

1. Look up your DNS records.
2. Ask what's missing.
3. Add records carefully.

## Prompt you can copy

```
Review my domain's email DNS settings (SPF, DKIM, DMARC): [paste]. What's missing, and what records should I add?
```

## Tools

- Claude

For Developers, Small businesses. Added October 12, 2026.

## Source

[hn](https://news.ycombinator.com/item?id=49090231) · July 2026

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