✅

Email Validator

📁Marketing

🛠Free to use

🔄Updated March 2026

Verify email addresses for syntax, domain validity, and deliverability. Clean your lists to reduce bounces and protect your sender reputation.

Launch Email Validator → Subject Line Analyzer

Why Email Validation Matters

Sending to invalid email addresses damages your sender reputation, increases bounce rates, and can get your domain blacklisted by email providers. The Email Validator checks addresses before you send, catching typos, fake addresses, and dead domains.

The tool performs multi-level validation: syntax checking (is the format correct?), domain verification (does the domain exist and accept email?), and mailbox probing (does the specific address exist?) without actually sending any email.

Validate individual addresses or upload your entire list for batch processing. Keep your bounce rate below 2% to maintain a healthy sender reputation.

Key Features

Syntax Validation

Checks email format against RFC 5322 standards to catch typos and formatting errors.

Domain Check

Verifies the domain exists, has valid MX records, and is configured to receive email.

Disposable Email Detection

Flags temporary or disposable email addresses (Guerrilla Mail, 10MinuteMail, etc.) that lead to dead ends.

Catch-All Detection

Identifies domains that accept all addresses (catch-all), which cannot be individually verified.

Batch Processing

Upload CSV or TXT files to validate thousands of email addresses at once.

Typo Suggestions

Detects common domain typos (gmial.com, yahooo.com) and suggests corrections.

How to Use Email Validator

Enter Email Addresses

Type a single address or upload a file containing your email list.

Run Validation

The tool checks syntax, domain, MX records, and mailbox existence for each address.

Review Results

See each address marked as valid, invalid, risky, or unknown with specific reasons.

Export Clean List

Download your cleaned list with invalid and risky addresses removed.

Use Cases

List cleaning — Remove invalid addresses before sending campaigns to protect your sender reputation.
Sign-up forms — Validate email addresses in real time on registration forms to prevent typos.
CRM maintenance — Periodically validate your contact database to remove addresses that have gone stale.
Import verification — Check purchased or imported email lists before adding them to your marketing platform.

Frequently Asked Questions

Does validation guarantee deliverability?

No. Validation catches obviously invalid addresses but cannot guarantee inbox placement. Deliverability also depends on your sender reputation, content, and authentication (SPF, DKIM, DMARC).

What is a disposable email?

Disposable emails are temporary addresses from services like Guerrilla Mail or Temp Mail. They expire quickly, making them useless for ongoing communication.

How often should I clean my list?

Validate your list every 3-6 months. Email addresses decay at roughly 2-3% per month as people change jobs and abandon old accounts.

Will this send emails to the addresses?

No. The validator checks DNS records and SMTP responses without delivering any email. Addresses are never contacted.