Email Verifier

Engineered for Accuracy

Why enterprise companies choose Reoon for email list cleaning.

Disposable Detection

Instantly identify temporary burner emails to prevent fake signups and keep your database clean.

Deep MTA Validation

We perform a full SMTP handshake to verify the mailbox exists without actually sending an email.

Spam Trap Removal

Advanced detection of spam traps and honeypots that can ruin your domain reputation.

High Speed Processing

Verify thousands of emails per minute using our high-concurrency cloud infrastructure.

Soft Bounce Check

Detect statuses like Mailbox Full or Disabled to save valuable leads.

Domain Analysis

Checks MX records and domain health without sending actual emails.

Maximize Your ROI & Reach Real People

Stop burning your budget on dead emails. Here is how clean data drives revenue.

Boost Deliverability & Open Rates

When you verify your email list, your sender reputation with email service providers improves due to low bounces. This means your emails land in the Primary Inbox, not Spam, leading to 2x-3x higher open rates.

Stop Wasting Money on Dead Lists

Email Service Providers (ESPs) charge by subscriber count. Removing the 20-30% of invalid emails in your list instantly reduces your monthly bill. Why pay to send emails that nobody will ever see?

Protect Your Domain Reputation

A high bounce rate (>2%) can get your domain blacklisted. Once blacklisted, even your legitimate business emails won't get through. Reoon acts as your primary defence against domain blocking.

Stop Fake Signups & Get Real People

Prevent the scammers from creating hundreds of accounts on your website using temporary emails. Force the users to use their real email during registration to ensure you are building a community of genuine, engaged users.

Clean your list in 3 steps

Simple enough for marketers, powerful enough for developers.

Upload

Just upload your CSV or TXT file. We auto-detect the email column for you.

Verify

Our engine validates DNS, MX records, and SMTP servers without sending mail.

Download

Get a clean file with emails marked as Safe, Risky, or Invalid.

What happens in the background?

Your data is processed on multiple secured servers. We connect to the recipient server to check existence, analyze domain reputation, cross-reference email with our database, and perform the advanced analysis. Verification data is automatically deleted after 15 days. You can also delete verification files anytime from the Results page.

Multi-Server Verification

Auto-Deletion

Strong Privacy

For Developers

Real-Time API

Integrate email verification into your app with our simple REST API. Verify emails at signup or clean lists in bulk programmatically.

Quick mode: <0.5s response time
Power mode: Deep SMTP verification
Bulk API for large lists (up to 50k emails)
Detailed JSON responses with 15+ data points

View API Docs

verify_email.py

import requests
# Single email verification (Power Mode)
response = requests.get(
    "https://emailverifier.reoon.com/api/v1/verify",
    params={
        "email": "[email protected]",
        "key": YOUR_API_KEY,
        "mode": "power"
    }
)
result = response.json()
print(result["status"])           # "safe"
print(result["overall_score"])    # 3/100
print(result["is_safe_to_send"])  # False

Trusted by Professionals

See what our customers say about Reoon Email Verifier.

"Reoon is the most accurate verifier we've tested. Our bounce rate dropped to virtually zero after cleaning our lists."

Mark Johnson

Marketing Lead

Elena Santos

CTO, TechFlow

David Wilson

Agency Owner

Sarah Chen

Email Marketing Manager

Alex Kumar

Full Stack Developer

Michael Torres

Data Analyst

Frequently Asked Questions

Quick answers to common questions about email verification.

What is email verification and why do I need it?

Email verification is the process of cleaning your email list by identifying invalid, disposable, and spam-trap emails. You need it to reduce your bounce rate, protect your sender reputation, and ensure your marketing emails actually reach real inboxes.

Why is Reoon more accurate than competitors?

We perform deep SMTP handshakes and maintain a live, proprietary database of disposable email providers. Unlike basic regex checkers, we verify if the inbox actually exists without sending a real email, ensuring 99% accuracy for any mixed quality email list.

Do unused credits expire?

If you get the instant credits, they are valid for the lifetime. You can buy credits today and use them next month or next year. Daily credits reset daily (unused daily credits don’t carry over).

Is my data stored securely?

Yes, absolutely. Your data is encrypted during transfer and processing. Furthermore, your uploaded files and results are automatically deleted from our servers after 15 days of the verification. We never sell or share your data.

Can I verify difficult emails like Yahoo and Outlook?

Yes. Many verifiers struggle with Yahoo, AOL, and Microsoft Outlook (Hotmail/Live) due to their strict security. Reoon uses specialized algorithms to verify these difficult providers with high precision, minimizing "Unknown" results.

What is a "catch-all" or "accept-all" email?

A catch-all server accepts emails sent to any address at that domain, even if the specific user doesn't exist. These are risky because they might eventually bounce or damage your reputation. Reoon identifies these so you can decide whether to keep or remove them.

How do I integrate the Email Verification API?

Integrating is simple. We provide a RESTful API that returns JSON responses. You can use our "Quick Mode" for instant checks (under 0.5s) on registration forms, "Power Mode" for deeper analysis and the "bulk endpoint" to verify a list of emails together. Full documentation and code examples are available in your dashboard.

Does Reoon detect disposable or temporary emails?

Yes, we have one of the most advanced disposable email detection systems. We identify temporary addresses in real-time to prevent fake signups and low-quality leads from entering your database.

What happens if the verification result is "Unknown"?

An "Unknown" status means the destination server was not responding at the time of the check or we could not get enough signals to determine the actual status of that email with enough confidence. We do not charge credits for unknown results.

Can I verify a single email without uploading a file?

Yes! Our dashboard includes a Single Email Validation tool. You can copy-paste an email address and get an instant result with full details (validity, disposable status, MX records, etc.) without needing to use the API or upload a CSV.

Create Your Free Account