FreeMailTools.comFreeMailTools.com

Email tools for developers.

Validate emails, check DNS records, generate signatures, write with AI, and analyse deliverability — all free, no account needed.

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Everything in your context.

200+ free tools, available instantly. No credit card required.

Email Validator
Validate email syntax, MX records, SMTP reachability, and disposable status in one check.
Temporary Email
Instant disposable inboxes with auto-refresh. No registration required.
MX Record Lookup
Query mail exchange records for any domain — see priority, TTL, and all servers.
SPF Checker
Validate, debug, and understand SPF records to stop email spoofing.
DKIM Checker
Verify DKIM signatures and public key status for any domain selector.
DMARC Checker
Analyze DMARC policy, alignment mode, and reporting configuration.
AI Email Writer
Generate professional emails instantly. 20+ templates, any tone.
Email Signature Generator
Build HTML email signatures with live preview. Works with all email clients.
Spam Score Checker
Check email content against 50+ spam filter rules before you send.
Browse all 200+ email tools
Delivery confirmed

Know your score before you send.

Our deliverability suite checks SPF, DKIM, DMARC, HTML quality, spam words, and domain reputation — giving you a comprehensive score in seconds.

Spam Score CheckerDeliverability CheckerBlacklist Checker

Score Overview

freemailtools.com

98
SPF Record
Pass
DKIM Signature
Pass
DMARC Policy
Enforced
Spam Traps
Clean
Content Analysis
Warning

Explore by category

Temporary Email

Disposable inboxes for privacy

Email Authentication

SPF, DKIM, and DMARC tools

Email Generators

AI-powered email writing

DNS & Security

Domain and server health

Frequently Asked Questions

What email tools are available on FreeMailTools.com?

FreeMailTools.com offers 200+ free email tools including email validators, temporary inboxes, SPF/DKIM/DMARC checkers and generators, MX record lookups, spam score analyzers, AI email writers, HTML signature generators, and many more. All tools are free with no account required.

How do I validate an email address for free?

Use our Email Validator tool. Enter any email address and we will check its syntax (RFC 5322), DNS MX records, SMTP reachability, and whether it belongs to a disposable email provider. Results are returned in seconds.

What is a temp mail and when should I use it?

A temp mail (temporary email) is a disposable inbox you can use instead of your real email address. It is useful for signing up for services, receiving verification codes, or testing email flows — all without exposing your personal email to spam.

What are SPF, DKIM, and DMARC?

SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting & Conformance) are email authentication standards. Together they verify that emails are sent from authorized servers, are unmodified in transit, and specify what to do with unauthenticated messages. Proper setup significantly improves email deliverability.

How can I improve my email deliverability?

Key steps include: setting up SPF, DKIM, and DMARC records; keeping your email list clean by removing invalid addresses; avoiding spam trigger words; maintaining a good sender reputation; and checking your domain against blacklists regularly. All the tools you need are free on FreeMailTools.com.

Are all tools really free with no hidden fees?

Yes. Every tool on FreeMailTools.com is completely free to use. There are no sign-ups, no credit cards, and no hidden charges. Simply open any tool and start using it immediately.

Can developers use these tools via API?

Many of our tools include API access. API endpoints allow you to integrate email validation, DNS lookups, and authentication checks directly into your own applications and workflows.

What is the difference between temp mail and a custom temporary email?

Standard temp mail assigns you a randomly generated email address. Custom temporary email lets you choose your own username prefix, making it easier to remember and share while still being fully disposable.