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Email Security Checker

Audit DMARC, SPF, and DKIM configuration in seconds with a shareable report.

Results

Interactive intelligence tool

Run the check, then ship the workflow

Use the browser tool for a fast answer, then move the same logic into scripts, monitoring, or product flows when it becomes repeatable.

Start with the live form

Enter a domain, URL, IP, email, or record and get a focused result without setup.

Review decision-ready signals

Outputs highlight statuses, risks, records, and next actions instead of raw provider noise.

Automate the workflow that works

Use the request and response examples to turn a one-off check into an API call or recipe.

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What this tool helps you decide

Each page is shaped around a practical operational question, not just a raw lookup.

Signal

See the current DNS, registration, security, pricing, or reputation evidence.

Context

Compare the result with related checks so the next move is easier to trust.

Action

Copy examples, open linked tools, or move into API documentation when you need scale.

Trust signals before you integrate

Transparent docs, authenticated requests, and visible reliability details make it easier to evaluate DomScan before you ship.

Live Service status

Check live service health and documented failure responses before you integrate.

OpenAPI API artifacts

OpenAPI, Swagger, Postman, CLI, SDK, and MCP links are one click away.

API keys Protected access

Authenticated endpoints use API keys with clear credit costs before you call them.

10,000 Free allowance

Start with 10,000 monthly credits and upgrade only when usage grows.

Key Features

Email Security Checker

Check SPF, DKIM, and DMARC configuration.

Optional DKIM selector

We will probe common selectors if left blank.

Check security

Check SPF, DKIM, and DMARC configuration.

Example request

Example request http

GET /v1/email-auth?domain=example.com

Example response

Example response json

{
  "spf": "pass",
  "dmarc": "pass",
  "dkim": "pass"
}

Built on the same API

The browser experience previews DomScan's structured endpoints, so teams can validate a use case before writing code.

Open API docs All tools

Frequently asked questions

What does the email security checker test?

It inspects SPF, DMARC, and DKIM records for the domain and summarizes whether core email authentication is configured correctly.

Why is DMARC important?

DMARC tells receiving mail servers how to handle spoofed mail and gives you reports so you can monitor abuse and rollout progress.

What happens if I do not know my DKIM selector?

Leave the selector blank and we will probe common selectors automatically. If your provider uses a custom selector, enter it for a more precise result.

When should I use this API instead of a one-off DNS lookup?

Use the API when you want a single, explainable pass/fail view across SPF, DKIM, and DMARC instead of manually checking multiple TXT records.

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