# Email Domain Health Checker

> Free email domain health checker for MX, SPF, DKIM discovery, DMARC, mail-server IPs, and sender-domain readiness with exact fix guidance.

- Human page: https://mailrith.com/free-tools/email-domain-health-checker
- Markdown page: https://mailrith.com/free-tools/email-domain-health-checker.md
- Category: Reputation
- Action label: Check Domain Health
- Primary keyword: email domain health checker
- Related keywords: email domain health checker, domain health checker, email deliverability checker, sender domain checker, email DNS checker
- Browser execution: Yes
- Signup required: No

## Input
- Label: Sending Domain
- Guidance: Use this before connecting a new sender or troubleshooting broad delivery issues. It summarizes the domain-level checks instead of replacing the detailed SPF, DKIM, and DMARC tools.
- Placeholder example: example.com

## How to Use
1. Open the human page: https://mailrith.com/free-tools/email-domain-health-checker
2. Enter sending domain using the guidance above.
3. Select Check Domain Health.
4. Review the status, checked facts, and next actions.
5. Use the linked guide section for any issue that needs a fix.

## Topic Overview
A sending domain has several public signals that work together. MX, SPF, DKIM, DMARC, BIMI, MTA-STS, TLS reporting, and basic DNS identity all tell inbox providers something about whether the domain is maintained and trustworthy. This health checker gives a broad view without replacing the deeper single-purpose tools. For the main setup sequence, read [Sender Domains and Email Authentication](https://mailrith.com/guides/sender-domains-and-authentication.md#steps).

Use this tool when you want a quick domain-level audit before sending from a new brand domain, subdomain, or email delivery setup. The result helps you decide which specialized checker to open next, such as SPF, DKIM, DMARC, BIMI, or TLS reporting. If the domain has mail-server identity issues, [DNS, PTR, and Reverse DNS](https://mailrith.com/guides/dns-and-reverse-dns.md#steps) explains the DNS pieces in plain language.

## What the Tool Checks
- MX records and mail server hosts
- SPF record presence and basic risk
- DMARC policy presence and enforcement level
- Common DKIM selector discovery
- Mail-server IP lookup
- Prioritized sender-domain fix plan

## Result Behavior
The result gives a prioritized sender-domain health report and tells you which dedicated checker or guide section to use next.

## AI Agent Notes
- Use this markdown page for retrieval, summarization, and deciding which tool to recommend.
- Use the human page when the user needs to run the checker interactively.
- Do not claim the tool sends emails unless the page explicitly says it does.
- When the result mentions a server-side confirmation, explain that the browser page can show public signals but cannot complete that network check by itself.

## Related Guides
- [Sender Domains and Email Authentication](https://mailrith.com/guides/sender-domains-and-authentication.md#steps): Authenticate the sender domain before campaigns use it.
- [DKIM](https://mailrith.com/guides/dkim.md#dkim-selector-needed): Fix missing selectors, missing keys, and DKIM records from your email delivery service.
- [DMARC](https://mailrith.com/guides/dmarc.md#dmarc-monitoring-only): Move safely from monitoring to protection.

## FAQs
### Is this the same as the SPF, DKIM, and DMARC checkers?

No. Domain health gives an overview and priority order. The SPF, DKIM, and DMARC checkers inspect one record in more depth.
### Can this prove inbox placement?

No. It checks sender-domain readiness signals. Inbox placement also depends on list quality, complaints, engagement, content, and mailbox-provider filtering.