# Free Email Tools - SPF, DMARC, and Amazon SES Checks

Source: https://wraps.dev/tools

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wraps · free tool

# Email Deliverability Checker

Check your domain's email authentication setup. We analyze SPF, DKIM, DMARC, and MX records to help you improve deliverability.

What is SPF?

Sender Policy Framework (SPF) specifies which mail servers are authorized to send email on behalf of your domain. [Build your SPF record →](https://wraps.dev/tools/spf-builder)

What is DKIM?

DomainKeys Identified Mail (DKIM) adds a digital signature to emails, allowing receivers to verify the message hasn't been altered.

What is DMARC?

Domain-based Message Authentication (DMARC) tells receivers how to handle emails that fail SPF or DKIM checks.

DMARC record checker

Read the policy, alignment modes, and reporting addresses. [Check DMARC →](https://wraps.dev/tools/dmarc-checker)

DKIM record checker

Test common selectors or enter your own. [Check DKIM →](https://wraps.dev/tools/dkim-checker)

Domain blacklist check

Query your domain and mail server IPs against 10 blocklists. [Check blocklists →](https://wraps.dev/tools/blacklist-check)

MX record lookup

See mail servers, priorities, and whether each one resolves. [Look up MX →](https://wraps.dev/tools/mx-lookup)

DMARC record generator

Build a DMARC record and see what would break before you publish it. [Build DMARC →](https://wraps.dev/tools/dmarc-builder)

Email header analyzer

Paste raw headers and read the hops, auth results, and alignment. Nothing leaves your browser. [Analyze headers →](https://wraps.dev/tools/email-header-analyzer)

SES bounce rate calculator

See where your rates sit against the SES review and pause lines. [Calculate rates →](https://wraps.dev/tools/bounce-rate-calculator)

### Stuck in the SES sandbox

Build the production access request that answers the four questions the AWS form never asks — or paste a denial and find out which one you missed.

[Open Request Builder](https://wraps.dev/tools/ses-production-access)

Not submitted yet? Work through the [16-point pre-request checklist](https://wraps.dev/blog/ses-sandbox-guide#pre-request-checklist) first.

### Calculate your AWS SES costs

See exactly what you'll pay for email sending plus the full infrastructure — EventBridge, Lambda, SQS, and DynamoDB.

[Open Calculator](https://wraps.dev/tools/ses-calculator)

Want to learn more about email authentication?

[Read: Why DMARC Is Broken](https://wraps.dev/blog/your-dmarc-policy-is-useless)