---
title: "Free email domain checker (MX, SPF, DMARC)"
url: "https://lookvalid.com/tools/email-domain-checker.md"
canonical_url: "https://lookvalid.com/tools/email-domain-checker"
last_updated: "2026-10-17"
type: "tool"
summary: "Check an email address or domain for free: MX records, SPF and DMARC policies, and whether it is a disposable domain."
related: ["https://lookvalid.com/docs/api/email-domain-check.md"]
---

# Free email domain checker (MX, SPF, DMARC)

Check an email address or domain for free: MX records, SPF and DMARC policies, and whether it is a disposable domain.

Enter an email address or a domain to see whether it can receive mail, how its SPF and DMARC records are set up and whether it belongs to a disposable or free provider.

## Facts

- Free, no account needed. Rate limited per visitor.
- Runs the `email-domain-check` product. The same lookup through the API costs 1 credit.
- API reference: [email-domain-check](https://lookvalid.com/docs/api/email-domain-check.md)

We read the public DNS records of the domain: its MX records (which servers accept mail), its SPF record (which servers may send mail for it) and its DMARC record (what receivers should do with mail that fails those checks). We also compare the domain with lists of disposable mail services and free mailbox providers, and check whether the part before the @ is a role name such as info or support.

We never connect to the mail server. The result is built from DNS and lists only.

## Related

- [Email Domain Check reference](https://lookvalid.com/docs/api/email-domain-check.md)