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Email Deliverability Tools

Check DNS records, validate SPF/DKIM/DMARC, and test deliverability. No signup required.

20+ free tools4 categoriesInstant results
InboxKitDNS & Authentication

SPF Record Checker

Validate your SPF records and check authorized mail servers for your domain.

SPF ValidationLookup Count
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InboxKitDNS & Authentication

SPF Record Generator

Create valid SPF records with proper syntax and mechanisms for your domain.

Record BuilderMechanism Guide
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InboxKitDNS & Authentication

SPF Raw Checker

Analyze SPF record syntax and mechanisms with detailed validation and lookups.

Raw AnalysisMechanism Breakdown
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InboxKitDNS & Authentication

DKIM Record Checker

Verify DKIM signatures and public key configuration for email signing.

Key ValidationSelector Check
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InboxKitDNS & Authentication

DKIM Record Generator

Generate DKIM keys and DNS records for proper email authentication.

Key GenerationDNS Format
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InboxKitDNS & Authentication

DMARC Record Checker

Validate DMARC policies and email authentication alignment for your domain.

Policy CheckAlignment
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InboxKitDNS & Authentication

DMARC Record Generator

Build DMARC policies with guided configuration and reporting setup.

Policy BuilderRUA / RUF
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InboxKitDeliverability

Deliverability Score Checker

Analyze your domain's deliverability score and get actionable insights to improve inbox placement.

Score AnalysisActionable Tips
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InboxKitDeliverability

Mailbox Calculator

Calculate how many mailboxes you need based on your outreach volume and campaign goals.

Volume PlannerCost Estimate
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InboxKitDeliverability

Reputation Check

Check domain and IP reputation across major email blacklists and databases.

Multi-SourceIP & Domain
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InboxKitDeliverability

Blacklist Checker

Check if your domain or IP is listed on 50+ major email blacklists.

50+ ListsIP & Domain
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InboxKitDomain & Security

DNS Record Checker

Comprehensive DNS record lookup and analysis for all email-related records.

All RecordsMX / TXT / A
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InboxKitDomain & Security

DNS Validator

Check if your SPF, DKIM, and DMARC records are configured correctly in one scan.

One-Click ScanMulti-Record
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InboxKitDomain & Security

Domain Scanner

Comprehensive analysis of all email authentication records for your domain.

Full AuditAuth Records
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InboxKitDomain & Security

BIMI Record Checker

Validate brand logo display configuration for Gmail, Yahoo, and Apple Mail.

Logo CheckVMC Verify
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InboxKitDomain & Security

BIMI Record Generator

Create BIMI records for brand logo display in email clients.

Record BuilderSVG Guide
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InboxKitDomain & Security

MTA-STS Checker

Validate TLS encryption enforcement policy for secure email delivery.

TLS CheckPolicy Mode
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InboxKitEmail

Email Header Analyzer

Analyze email headers for authentication results and routing information.

Header ParseAuth Results
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InboxKitEmail

Spam Words Checker

Scan your email content for spam trigger words and phrases that hurt deliverability.

Word ScanScore Check
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InboxKitEmail

Email Permutator

Generate common email address formats for any prospect using their name and domain.

Format GenName + Domain
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More than just tools

InboxKit provides complete email infrastructure with guaranteed deliverability, automated DNS setup, and managed warmup.

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