Reoon Email Verifier – Free Bulk Email Verification Tool
The most accurate online bulk email validation service that cleans invalid, temporary & unsafe email addresses from your email list and protects your email server's reputation.
Up to 600 free verifications every month · No credit card required
★ 4.8/5 from 1,000+ reviews on G2 · Also top-rated on Capterra, GetApp and Trustpilot
Bulk Email Verification & Validation Service with 99% Accuracy
Verifying email addresses in bulk was never this easy. We have developed this email validation tool to help marketers and business owners clean their email lists and make their website registration spam free. Our primary goal with this bulk email verification service is to provide the best service possible at an affordable rate. Our dynamic temporary email detection system can detect the most hard-to-detect temporary email addresses in seconds. With our powerful email validation engine, we can verify the most complicated emails, which include Gmail, Microsoft, Yahoo, AOL and Custom Business Domains. The quick API validation mode can verify users’ email live during website registration within 0.5 seconds. We are proud to say that we are delivering email verification service with more than 99% accuracy to our customers with great satisfaction. Feel free to start using our bulk email verifier at zero cost, as a bulk email checker for CSV lists, or as a real-time email verification tool through the API and the WordPress plugin.
Why Clean Your Email List With Reoon Email Verifier
See how our email verification software helps you reach real inboxes and keep your sender reputation intact.
Verify email addresses in bulk without sending any emails and keep your mailing list healthy by removing invalid and fake addresses.
Clean your email list before sending with our automatic email cleaning service.
Prevent your emails from ending up in the spam folders by sending emails to the quality addresses only.
Save yourself from getting penalized by sending emails to the known spamtrap addresses.
Protect your websites from spam registrations and increase your profit with real customers.
Reduce your bounce rate with our email bounce checker. A high bounce rate can kill your email campaign.
Protect the sender reputation of your domain and server, which will result in better engagement.
Get users’ actual email while registering on your site by preventing them from using temporary addresses.
Check if an email is valid with our email validator, a single email checker for one address, or bulk verification for entire lists.
Prevent your server and sending domain from being blocked/blacklisted by email providers.
Stop wasting money on disposable addresses that users will never check after the first use.
Verify users’ emails live within 0.5 seconds with our API’s quick verification mode.
Email Verifier Features
Find out the most useful features of the Reoon Email Verifier.
Very High Data Accuracy With Full Details
We provide email verification with over 99% accuracy for verified emails of mixed quality, and provide full details to help you understand the condition of each email.
AI-Powered Email Scoring System
Our AI-powered scoring system can give each email a score out of 100 based of multiple important factors. Users can easily determine the condition of an email address based on the score.
Verify Gmail, Yahoo, Outlook or Anything
With our unique validation technique, we are verifying the most difficult addresses including Gmail, Yahoo, Outlook, Hotmail, and almost all other custom business domains.
Dynamic Disposable/Temporary Email Detection
We use some unique algorithms to detect disposable email addresses in real time with the best accuracy in the market. Don’t believe us? Try verifying some disposable email addresses from TEMPMAIL (or other temporary email providers) with our competitors and us. You will understand the quality of our service.
Spamtrap & Complaint Emails Detection
We match every email with our latest known spam traps & complaint email database. This will help you to prevent sending emails to these addresses. Please note that, spamtraps are designed to act dynamically and due to their nature all spamtraps cannot be detected. We do not provide any guarantee on detecting spamtraps. Only known spamtraps and spamtraps with specific signatures can be detected.
MTA Validation of Domain
We verify that the Mail Transfer Agent has a valid MX record to confirm that the domain is capable of receiving incoming emails.
SMTP Validation of Individual Address
Not just domain, we also verify each email address individually to ensure that the address responds properly to SMTP requests, which ensures the most accurate result of an individual address.
WordPress Plugin for Form Validation
We have a powerful WordPress plugin available that can verify email addresses during a form submission. It makes the form validation super simple for users who are using one of the supported WordPress forms. The plugin can block invalid, temporary, or fake email addresses which will force the users to use their real email.
Live API Email Validation (0.5 Seconds)
With our multi-server setup in different locations of the world, we can verify thousands of email addresses in no time. We verify addresses from the closest server possible to provide results with more accuracy in the shortest time possible.
Superfast Bulk Email Verification
Upload a CSV or paste your list and our bulk email checker verifies thousands of addresses in minutes, around 8–12 minutes for 10,000 mixed-quality emails, using servers in several regions, with results grouped into safe, catch-all, disposable, invalid and unknown.
Simple & Attractive User Interface
We tried to make the user interface as simple as possible while keeping the most advanced features there. You will never feel bored with the system.
Download Categorized Results With Full Details
We automatically categorize the emails based on the status of that address. Our smart categorized download system will allow you to download all or the specific type of results you want. This will definitely save a lot of your time.
Daily Renewal & Instantly Usable Lifetime Credits
We provide flexibility on credits with daily auto-renewal credits and instant credits that never expire. You can get a combination of different types of verification credits based on your requirements. These are two different type of credits. The instant credits do not depend on the daily credits.
GDPR Compliance Service
We take data protection seriously. All uploaded data in our servers are encrypted with AES-256 military-grade encryption. We never share any of the uploaded data with third parties. We never send any emails to the uploaded addresses. By default, all the uploaded data gets deleted from our servers after 15 days of email verification and no data can be recovered after that. Users can also delete the task data from our server just by clicking a button.
How Reoon Verifies an Email Address
Five checks, zero emails sent. Here is what happens to every address you upload, paste or send through the API.
1. Syntax & format
Typos, impossible characters and malformed domains are rejected instantly, before any server is contacted.
2. Domain & MX lookup
We confirm the domain exists and has mail servers (MX records) that can receive email. Dead or parked domains stop here.
3. Mailbox check (SMTP)
Our servers ask the recipient mail server whether the exact mailbox exists, without sending an email. Gmail, Microsoft, Yahoo and AOL get special handling.
4. Risk detection
The address is matched against disposable, role-account, free-provider and known spam-trap databases, and the domain is tested for catch-all behaviour.
5. Score & status
Every result gets a status and an AI-powered score from 0 to 100, so you decide exactly what to keep. Unknown results are refunded automatically.
What each result status means
Every address comes back with one of these statuses and a score from 0 to 100, so you decide exactly what to send.
| Status | What it means | What to do |
|---|---|---|
| Safe | Mailbox exists and accepts mail; no risk flags. | Send with confidence. |
| Role | Valid, but a shared company address (info@, support@). | Fine for B2B outreach; usually skip for newsletters. |
| Catch-All | The domain accepts mail for any name, so the mailbox cannot be confirmed. | Send with caution, as a separate segment. |
| Disposable | A throwaway address that expires shortly after creation. | Do not send; block it at sign-up. |
| Inbox Full | A real mailbox that cannot accept new mail right now. | Skip for now and re-verify later. |
| Spamtrap | An address that exists only to catch careless senders. | Never send. |
| Disabled | Existed once; the provider has shut it down. | Do not send. |
| Invalid | No mailbox exists: a guaranteed hard bounce. | Do not send. |
| Unknown | The server would not give a definitive answer. | Not charged; re-verify later. |
Full explanation of every status in our guide: The Meaning of Different Email Verification Statuses.
Ready to see the breakdown for your own list?
Upload a list and get results in minutes. Up to 600 verifications a month are free, no credit card needed.
Who Uses Reoon Email Verifier
One tool, three jobs: fewer bounces, cleaner sign-ups, better leads.
Email marketers & list owners
Clean your list before every campaign so hard bounces, spam traps and disposable addresses never reach your ESP. Download only the safe segment and re-verify on a schedule, and your sender reputation stays spotless.
SaaS, apps & websites
Validate sign-ups in real time with the API’s quick mode (about 0.5 seconds) or the WordPress plugin. Fake and disposable emails are blocked at registration, so every user you gain is a user you can reach.
Lead-gen teams & agencies
Verify scraped, purchased or exported lists in bulk (10,000 addresses in roughly 8 to 12 minutes) and pay only for definitive results. Instant credits never expire, so verify whenever the leads arrive.
Start with up to 600 free verifications a month
Registration takes 30 seconds. No credit card, every feature included.
Email Verifier Pricing - Free Tier, Instant or Daily Credits
We provide competitive pricing for different flexible packages to support your requirements.
Free Tier
$0
For Lifetime
- Verify up to 20 emails per day.
- Free 100 instant credits included.
- Single/bulk email verification.
- Live API validation (0.5 Seconds).
- No credit card required.
- Daily credits renews on login.
- Every features included.
Instant Credits
$12
One Time Payment
Popular Packages:
10K Credits – $11.90
25K Credits – $29.66
50K Credits – $58.95
100K Credits – $116.40
500K Credits – $522.00
1000K Credits – $960.00
- Single/bulk email verification.
- Email list verification.
- Live API validation (0.5 Seconds).
- Starts from $11.90 only (10k credits).
- As low as $0.0007 per verification.
- Can use all credits together.
- Credits will never expire.
- No monthly charges.
- Best for verifying large email sets.
Daily Credits
$9
Each Month
- Single/bulk email verification.
- Email list verification.
- Live API validation (0.5 Seconds).
- Starts from $9 (500 credits/day).
- As low as $0.0005 per verification.
- Credits renew every day.
- Best for verifying email sets daily.
Free Forever Tier – 20 Verifications Every Day
Every account gets 20 daily credits for life (up to 600 verifications a month) plus 100 instant credits at sign-up.
No monthly payments. No credit card.
Need more? Add instant credits that never expire, or a daily plan from $9/month.
Email Verification FAQ
Find out more about the frequently asked questions from the users.
What does the email verification credits mean?
To make it simple, you can consider the credits as an internal currency. When you perform a verification, the credits will be taken from your account. One successful email verification (anything except unknown) will cost you one credit only. You can get credits by purchasing or by referring friends.
Does one credit equals one email verification?
In short, the answer is yes. One successful verification will cost you one credit only. A successful verification includes the status like safe, role, catch-all, invalid, disposable, spamtrap etc (anything except unknown). However, credits can be used in some other operations in the future. However, credits can be used in some other operations in the future.
Will the email verification credit expire, if I do not use them?
There are two types of credits available. The daily credits with a monthly subscription and the instant/lifetime credits.
The daily credits renew every day (the unused credits will not add up). It will keep renewing until the end of your subscription. After the subscription ends, it will keep renewing at the free tier’s limit.
On the other hand, instant credits will never expire. You can use them anytime you want and keep them in your account as long as you want.
If I have both type of credits, which one will be used first?
If you have both daily and lifetime credits in your account, the daily credits will be used first. Lifetime credits will only be used if daily credits are exhausted.
For example, you have 10,000 lifetime credits and you get 20 credits every day for free. In that case, the first 20 verifications will consume daily credits. So, if you verify less than your daily limit, your lifetime credits will not reduce at all.
Do you charge credits for "unknown" verification results?
Never. We will never charge you a single credit for unknown email verification results. Most of our competitors charge for processing results even if they are unknown. Some of them claim to refund the unknown credits, but the customer needs to contact their support every time. We are very clear in this case. Credits will automatically get refunded to your account as soon as the verification is completed. You can also find the refund status in the “Credits History” section.
in case of credits refund, the lifetime credits will be refunded first on a priority basis (no matter the ratio), then the remaining credits will be refunded as daily credits. We value our customers.
Can I upload and verify an excel file with multiple columns?
Yes, you can. Currently, we accept uploading excel files in CSV format. Our system will identify the email column based on the column header and the data itself. After the verification, the download file will have some extra columns created with verification details. Your original columns will remain the same.
How long it can take to verify 10,000 email addresses?
Generally, it can take around 8-12 minutes to bulk verify a set of 10,000 mixed-quality email addresses. The average time will increase or decrease based on the size of your email set. The verification speed also depends on the quality of email addresses. Some email servers do not respond as fast as others. Some email addresses require multiple checks to avoid gray listing rejections. Also if our server gets overloaded by the large verification tasks from different users at the same time, your task can get queued and can take a little longer (however this is a rare case as we deploy new servers if we detect such overload issue).
What will happen to my uploaded data?
We do not store any uploaded data for more than 15 days. All the uploaded data will automatically get deleted after 15 days. That’s the reason, you will not be able to download any verification results after that period. We never share any of your uploaded data with anyone. Your uploaded data is fully secured within our protected system.
How can I test if your service is better than others?
Run the same three tests with any email verifier and compare: Microsoft addresses (Outlook, Hotmail, Live), Yahoo addresses, and disposable addresses from TEMPMAIL or similar providers. Then check whether the other service refunds “unknown” results automatically, as we do. The step-by-step guide is in the comparison section on this page.
Can you suggest anything to get a list of email addresses (leads)?
Yes, you can try our Reoon YellowPages Scraper. YellowPages is one of the largest sources of local business contacts. With our software, you can extract thousands of local business information (including email and phone numbers) within minutes.
What does Reoon Email Verifier check for each address?
Every address goes through syntax validation, domain and MX record checks, an SMTP check of the individual mailbox, and matching against our disposable, role-account, free-provider and known spam-trap databases, plus catch-all detection for the domain. You get a clear status for each email, safe, valid, role account, catch-all, disposable, spam trap, invalid or unknown and an AI-powered score out of 100, so you can decide exactly which addresses to keep. The same checks run in bulk, through the API and in the WordPress plugin.
Is Reoon Email Verifier free to use?
Yes. The free tier gives you 20 daily credits that renew every day, which is up to 600 email verifications a month, plus 100 instant credits when you register, with no credit card required. Every feature is included: bulk list verification, single email checks and live API validation. When you need more, buy instant credits that never expire (from $11.90 for 10,000) or a daily-credit subscription (from $9 a month).
How do I verify a bulk email list?
Register, open the dashboard and upload your list as a CSV file (or paste the addresses as text). Reoon detects the email column automatically, verifies every address without sending any emails, and groups the results into categories such as safe, catch-all, disposable, invalid and unknown. Download all results or only the category you need, your original columns stay intact. A list of 10,000 mixed-quality addresses usually takes 8–12 minutes.
Does Reoon send emails to the addresses it verifies?
No. Reoon verifies mailboxes with an SMTP handshake and other technical checks only, no message is ever delivered, so the address owners are not contacted and your sending domain is never involved. Uploaded lists are encrypted with AES-256, never shared with third parties, and deleted automatically 15 days after verification (or earlier if you delete the task yourself).
Do I need a subscription, or can I pay as I go?
Both options are available. Instant credits are a one-time purchase with no monthly charges, they never expire and start at $11.90 for 10,000 verifications (as low as $0.0007 per email for larger packages). Daily credits are a monthly subscription that renews a fixed number of credits every day, from $9 a month for 500 credits per day (as low as $0.0005 per verification). You can combine both, and unknown results are never charged.
Do you offer refunds on purchases?
Yes. the users can make refund requests within the 30 days of payment. The requests are reviewed on a case-by-case basis and we provide full or partial refund if the case is accepted, which depends on the issue and/or how much of the service was used, so the policy cannot be misused. See our Terms & Conditions for the details.
Any other questions?
If you have any other questions in your mind. Do not hesitate to contact us. We will try our best to make everything clear to you.
Reoon vs Other Email Verification Tools(Test Yourself)
You do not need to take our word for it. Run the three tests below with any email verifier and compare the results.
Testing Guide
- Verify Microsoft's emails (Outlook, Hotmail, Live)
- Verify Yahoo emails
- Verify temporary email addresses (e.g., TEMPMAIL)
- Charges for “unknown” results
- Compare the detail of each result
- Quality Assurance
Their Performance
- Very strict policy, often "unknown"
- Often marked as catch-all by others
- Often marked as catch-all by others
- Often charged, or refunded only via support
- Usually just a status
- Varies by provider
Our Performance
- Accurate verification
- Accurate verification
- Our accurate detection
- Never charged; credits are refunded automatically when the task finishes
- Status, AI score (0–100) and full details
- Comprehensive API & bulk verification, assured quality
A Self Testing Guide to Compare Our Service
Run these quick tests with any email verifier and compare the results:
- Try verifying Microsoft’s emails (i.e., Outlook, Hotmail, Live). Microsoft has a very strict policy. Most of the companies cannot verify them properly. So, they respond “unknown” most of the time.
- Try verifying Yahoo emails. Most of the other companies either cannot verify them or declare yahoo as a catch-all. However, we can accurately verify the Yahoo emails.
- Try verifying some temporary email addresses from TEMPMAIL and some other top temporary email providers. Check how many of them can detect them and compete with us.
- Check if other companies provide instant and automatic refunds for the “unknown” results.
We always try to provide the best API & bulk email verification service, at the best price possible. If you can properly do the tests we mentioned above, we believe you will not have any confusion about the quality of our email verification service.
User Reviews on G2, Trustpilot & Capterra
Reoon is reviewed by 1000+ people with an average rating of 4.8/5.0 across different platforms like G2, Trustpilot, Capterra, GetApp, etc.
Reoons email verifier is a game-changing solution for email verification. It has significantly reduced my bounce rates, guaranteeing the successful delivery of my emails. It is not only cost-effective and user-friendly but is essential for any online business.
The platform's speed, accuracy of results, and the pleasing UI/UX made our experience wonderful! The usage limits are generous and most importantly, support is very responsive. The support is very responsive!
The best part of Reoon is that it gives very detailed information about the accounts. It also gives scores to each email, which helps me to filter my list further and achieve the best results. Plus, it does not charge for unknown results. it gives the results pretty fast.
I've been using this tool and am impressed by its efficiency and speed. The interface is clean and user-friendly, making navigation and task execution straightforward. I particularly appreciate the sortable output feature for its convenience in organizing data. The tool offers excellent value for its cost.
You read this far, why not give it a try?
Registration only takes 30 seconds! No credit cards required!
Email Verification Guides - Tutorials & API Documentation
Check the articles relevant to the email verification services and learn how the system works.
- Email Verification
- Email Verification
- Email Verification
- Email Verification
- Email Verification
- Email Verification




