Do you have a long list of dirty emails you want to clean up before sending your next promotional campaign? If yes, you are on the right page. I have compiled the ultimate list of the 26 best free bulk email verification tools here.
A clean email list is crucial for your email marketing campaign, as sending emails to spam or invalid emails may result in bounces, spam-trap hits, and bounces.
As a result, your email service provider might start sending your emails to spam folders or even block them.
With the help of these free online bulk email verifiers, you can upload your dirty email list and separate the spammy and toxic emails from the genuine ones.
These bulk email verifiers support multiple file formats, such as CSV and Excel, to import your email list.
After that, they perform their verification process to check whether the email is valid. These services apply multiple checks to verify email addresses, such as verifying MX records and validating SMTP servers.
The best part is that most of these free bulk email verification tools provide real-time API support, allowing you to easily integrate them with major email service providers or your app or software.
Please note that some email services are not entirely free and offer a freemium model with limited credits. Therefore, if you have a long list of emails (more than 1000), you must upgrade your free plan or use multiple free email bulk verification services to clean your list.
Pro tip: Implement a double opt-in feature to verify emails to collect genuine people’s emails.
Before discussing these email verification tools, let’s first understand what you should consider in an excellent bulk email verification service.
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What should you look into for an excellent free bulk email verification tool?
While most bulk email verification platforms in this list can clean from a small to an extensive email list on the fly, choosing your business’s best option can be pretty tricky.
You should look for these factors to help you understand which one you should pick.
1. Accuracy: How accurate are the particular bulk email verification services? While some email services can accurately detect disabled Yahoo, Outlook, and AOL emails, others are less accurate.
2. Duplicate removal: The email verification service should be able to remove duplicates from your email list before performing the validation process.
3. Catch-All Verification: A catch-all mail server accepts all emails regardless of whether a mailbox for that email account exists. Catch-all emails can result in bounces and can affect deliverability.
4. Syntax Validation: Every bulk email verifier software should have a simple feature. Check the syntax of an email and see if it’s okay. If the syntax is incorrect, there is no need to perform other checks to determine whether an email is valid.
5. Blacklist Verification: Blocklisting emails is a common and efficient way for service providers to reduce spam. If the mail server is blocklisted, your email will not be delivered to that address. Therefore, your bulk email validation service should offer this handy option for accurate results.
6. SMTP Verification: Connect with the SMTP server and check the MX records to validate it.
7. Spam Trap Detection: Spam emails look like real emails but don’t belong to any genuine person and can’t be used for communication. You will only receive spam emails if you obtain your list without users’ permission.
8. Disposable Email Verification: Detect whether emails are disposable or not.
9. Turnaround time: The email service’s total time to clean your list.
10. Data Privacy: Your customers’ emails are sensitive personal information that you should try to protect at any cost. Before subscribing to any bulk email verification service,
11. Cost: Choose an email bulk verification service with the best ROI, high accuracy, and flexible pricing plans.
12. Integrations: Your email verification platform should seamlessly integrate with other services, such as Aweber, Mailchimp, etc., to validate emails on the fly.
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26 Best Free Bulk Email Verification Tools
1. Abstract
Abstract’s Bulk Email Verification API is a robust solution for identifying valid and risky email addresses in bulk.
Its real-time or asynchronous capability enables efficient detection and suppression of invalid or disposable email addresses, resulting in a cleaner email list, reduced bounce rate, and improved email delivery rate for legitimate recipients.
Using a combination of sophisticated techniques, the Abstract email verification API conducts thorough checks to ensure the identification of invalid or risky emails.
These checks include comprehensive syntax errors and typo detection, real-time SMTP and MX record checks against the email’s domain, advanced regular expression (regex) validation, and machine learning-powered filters that effectively pinpoint invalid or risky emails.
In addition to email validation, the API also flags other characteristics, such as emails originating from popular free email providers like Yahoo or Gmail, disposable email services like Yopmail, and “role” email addresses like team@ or sales@.
This Email Verification API aids you in identifying emails from recently registered domains, which can indicate potentially fraudulent or spammy users that require further scrutiny.
By leveraging Abstract’s Bulk Email Verification API, you can ensure the accuracy and quality of their email addresses, reduce bounce rates, and enhance overall email deliverability to genuine recipients.
Features:
- Robust email validation and verification
- Identifying disposable and free email providers
- Typo checking and intelligent suggestions
- Real-time SMTP checks
- Role-checking and filters
- Protected by bank-level security
Free Trial: 100 request
Accuracy: 99%
Data security: Uses 256-bit SSL encryption (HTTPS), ensuring the confidentiality and integrity of user data
Turnaround Time: Unknown
2. QuickEmailVerification
QuickEmailVerification is a free bulk email verification tool that gives you 100 credits daily (1 credit = 1 email) to validate emails.
Sign up for a free account and upload your email list, and QuickEmailVerificaiton will perform multiple checks, including syntax validation and mailboxes.
Once the processing is done, you can download the file of valid emails for higher deliverability.
If you are looking for a cheaper and free service, then QuickEmailVerification is the best option, as it offers the highest free credits.
Create an account to take advantage of the free credits. Best of all, it is highly accurate in validating Yahoo and Outlook emails compared to other services on this list.
Features:
- Anti-greylisting technology
- MX record checker
- Email typo correction
- Catch-all email checker
- Quick API turnaround
- Segment list and download custom email verification results
- In-depth verification report
- Auto deletes old verification email lists.
Free Trial: 100 emails per day.
Integrations: Act-On, Autopilot, AWeber, Mailchimp, Iterable, etc.
Accuracy: 99%
Data Security: Encrypted data storage with full GDPR compliance.
Turnaround Time: 200,00 emails in around two hours.
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3. Bounceless
Bounceless is another free bulk email verifier on this list. It provides 100 free credits daily and performs frequent checks, such as SMTP and MTA validation, to verify emails.
Using this tool is pretty straightforward. Visit the link above and sign up for a free account. After that, upload your email list in any supported formats – CSV, XLS, TXT, etc. and start the email verification process.
Once the validation process is complete, you can download the clean list with maximum accurate results.
Features:
- Spamtrap check
- MTA validation
- Accept All account validators
- Syntax verifier checker
- SMTP validation
- Risk validation
- Disposable email checker
- API support for developers
Free Trial: 100 emails per day.
Cost: 2,500 email verifications at $19.
Integrations: MailChimp, SendGrid, HubSpot, AWeber, Active Campaign, Mailer Lite, Sendloop, etc.
Accuracy: 98%
Data Security: Secure data transmission with 256-bit encryption.
Turnaround Time: Unknown.
4. emailvalidation
Emailvalidation is another free bulk email verifier tool. The tool performs numerous checks to verify whether an email is valid and exists.
The best part is that this free tool offers an accuracy of up to 99% to check whether an email is active and ready to receive emails.
It can also segment email lists on different criteria, such as engagement level or location.
This free bulk email verifier tool validates emails by performing catch-all detection, syntax and typo checks, real-time SMTP MX record checks, and other tests.
Features of emailvalidation:
- Bulk email verification API
- Real-time results
- Secure and scalable
Free trial: 100 emails per signup
Pricing: Free plan available with 150 email validations per month.
5. Email List Validation
Email List Validation is an online tool that provides feature-rich bulk email verification. It is one of the best email verification service solutions available. With it, you can increase your email deliverability and sender reputation, improve data quality, and improve email marketing ROI.
The best part is that it removes invalid and complex bounce email addresses from your database and cleans up your email list.
You can upload your email list, wait for it to perform various checks, and then clean it.
Also, all the duplicated email addresses and emails with invalid syntax are removed automatically.
This service also removes sketchy emails that can be a spam trap. Along with this, email addresses containing inactive and invalid domains are also deleted.
It also allows you to add your team members and collaborate. The service protects your data with a high level of encryption. Along with it, they are GDPR compliant.
Features of Email List Validation
- Disposable Email Checker
- Syntax Verifier
- Real-time email verification
- Email Duplication
- Spam-trap removal
- 99 percent accuracy
- MTA Validation
- Anti-greylisting tech
- Team account
- Support for multiple ESPs and CRMs
- GDPR Compliant
Free trial: 100 emails per signup
Cost: 2500 at $19.
Integrations: HubSpot, Mailgun, MailChimp, Active Campaign, Sendloop, Campaign Monitor, SendGrid, and more.
Data Security: GDPR compliant
6. Atomic Email Verifier
The Atomic Email Verifier is an inexpensive but efficient tool for verifying email addresses on your list. It will ensure that every address is correct and valid.
What’s more? Everything is automated, making it super easy to use. Upload your email list using the .xls or .csv formats, and your result will be a clean email list without duplicate, incorrect, or invalid email addresses.
Marketers love Atompark’s Email verification software because it is thorough and has a minimal bounce rate! It’s one of the market’s most accurate email verification services, designed for beginners and experts.
Features:
- Syntax Check: Removes all emails with typos or syntax errors.
- Domain check: Removes email addresses that do not belong to any valid domains.
- Detects and removes disabled email addresses
- Removes duplicates and addresses from blocked mail servers.
- Saves email addresses into email lists
- 24/7 customer support
- Protection from viruses and malware
- Customizable program settings and support for multiple filtering rules
- Multiple export options
7-days free trial
Price: Starts at $59.37 – lifetime downloadable for a single PC. Save 15% by paying $118.74 for 2 PCs.
Data security: GDPR compliant, ISO 27001 information storage security certificate
7. MailerCheck
MailerCheck is one of the most accurate email verification tools, with a 98% delivery rate guarantee. This makes it the perfect choice for businesses that want to grow their mailing lists while keeping their email marketing ROI high.
MailerCheck offers single email or bulk verification and real-time API verification. Once API verification is set up, MailerCheck will filter invalid emails immediately after subscription.
This will benefit developers, high-volume senders, marketers, start-ups, and anyone who wants to streamline and automate their workflows.
Quick and easy verification includes Invalid email checks, Catch-all, Role-based, Disposable emails, Syntax errors, and Typo checks. It also notifies you if the recipient’s mailbox is full.
Unlike other tools, MailerCheck offers additional features to analyze the email content and suggest passing spam filters to improve your deliverability.
Features
- High-accuracy email verification
- Real-time API verification
- Inbox placement test
- Email content analyzer
- Spam filter test
- IP blocklist check
- In-depth reports
- Usage history
- Cost-effective
- Automatically deletes old reports
- 24/7 Customer support
Free trial: 200 emails
Price: Starts at 0.006 for pay-as-you-go plans or saves an additional 20% on a monthly subscription.
Integration: All major email service providers, including MailChimp, MailerLite, GetResponse, Active Campaign, ConvertKit, etc.
Data security: GDPR compliant, ISO 27001 information storage security certificate
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8. Free Email Verifier
Free Email Verifier is another free bulk email verification service on this list. It extracts MX records from a DNS server, then connects to the SMTP server and emulates sending an email message to validate an email.
Please create a free account to get your daily 50 credits and copy-paste your emails into its bulk verification section. After verification, you can download the clean email list as a TXT file.
If you are looking for an affordable bulk email verifier with good accuracy and security, you can choose Free Email Verifier.
Free Trial: 50 emails per day.
Cost: 10,000 email verifications at $17.
Integrations: None.
Accuracy: 95%
Data Security: GDPR complaint.
Turnaround Time: Unknown.
9. Email Verifier
Email Verifier is a free bulk email verification service you can use unlimited times. The only drawback is that you can only validate 20 emails at once.
If you have a short email list to clean, you can start with BulkEmailVerifier without any problem. Of course, if you want to clean a long email list, the only tradeoff is more time and effort.
The best part is that no signup is required to use Email Verifier. Visit its homepage, paste your email lists (20 max), and start the cleaning process.
Verifying your listing and displaying the results usually takes a few minutes. You will see whether it is valid for each email, and you can export the clean list as a TXT, JSON, or XML file.
Email Verifier uses DNS and SMTP protocol methods to verify emails. This bulk verifier also performs DNS queries to find a mail server for a given email address. Then, SMTP communication is used to verify whether any mail servers will accept an email.
Free Trial: 20 emails per execution with unlimited runs.
Cost: 10,000 email verifications at $17.
Integrations: None.
Accuracy: 95%
Data Security: Read its privacy policy here.
Turnaround Time: up to 2 to 3 minutes for 20 emails.
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10. NeverBounce
NeverBounce is one of the best and most reliable bulk email verification services, providing 99.9% accurate results.
What I appreciate about NeverBounce is that it offers one-time 1000 free credits for verifying emails.
Therefore, if you list under 1000 emails for cleaning, you can do it free with NeverBounce, which is high quality and secure.
Features:
- Hybrid verification
- Mail server validation
- Domain health check
- High-risk detection
- Compatibility with international B2B and B2C emails
- Identify domain, network, host, and TLD
- SMTP check
- Identity role-based emails and free hosts
- Remove duplicate emails from the list
Free Trial: 1000 free credits when you first sign up.
Cost: up to 10,000 $0.008 per email for up to 10,000.
Integrations: Active Campaign, Agile CRM, AWeber, MailChimp, LeadSquared, Salesmate, etc.
Accuracy: 99.9%
Data Security: GDPR compliant.
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11. MailboxValidator
MailboxValidator is another email verification service on this list that offers a free plan for cleaning your email data.
However, the plan is limited as you get only 100 free email addresses for verification. However, if you know a bit of programming, you can use its API plans to get more free credits.
With its API plan, you will get 600 free API queries for email verification per month. Doesn’t that sound great?
Follow this simple tutorial to send emails using Python and integrate MaxValidator API with the scripts to verify the fly’s emails.
Features:
- Email syntax validation
- MX Record check
- Free email
- Server status
- Role-based email checker
- Catch-all account checker
- Domain validation
- Email Greylisting Checker
- Free email provider checker
Free Trial – First 100 email addresses.
Accuracy: 96%
Cost: 50,000 emails at approx $150.
Integrations: Zapier, MailChimp, Aweber, Mailgun, SendGrid, Mailerlite, iContact, HubSpot, etc.
Accuracy: 96%
Data Security: GDPR compliant.
12. Bouncer
Bouncer is another free service that can help you clean your email list. It uses AI algorithms to interact with SMTP servers to provide the most accurate results. Just like MaxValidator, you get 1000 free credits at the signup that you can use to verify a thousand emails in bulk.
Just upload your list with dirty emails and export the clean results to send emails with maximum deliverability.
Features:
- Email syntax validation
- Run DNS and MX record check
- SMTP check
- Disposable email checker
- Free email provider check
- Role email detection
- Catch-all account checker
Free Trial: 1000 emails.
Cost: $ 0.0025 per verified email up to 9000 emails.
Integrations: Aweber, Constant Contact, Mailchimp, Klaviyo, etc.
Accuracy: 99.5%
Data security: The system is GDPR compliant. Submitted emails are hashed for anonymity. The data centers are located in EU territory.
13. Proofy
Proofy performs syntax, domain, and SMTP checks to verify emails in bulk. The free trial version gives you 500 free emails to verify. Create a free account and upload a CSV or TXT file to download the clean list at the end.
Features:
- Real-time API support
- Email deduplication
- Syntax Verifier
- Domain Validation
- SMTP verification
- MX records validator
- Risk validator
Free Trial: 500 emails check.
Accuracy: 98.5%
Cost: $0.06 per email check.
Integrations: MailChimp, Mailerlite, and HubSpot.
Data Security: GDPR compliant.
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14. Hunter
Hunter is yet another effective and efficient bulk email verification service. The only downside of Hunter is that you will only get 50 free emails to validate every month.
In addition, like other online tools on this list, it can be used to separate spam emails from genuine ones without any hassles.
You can also use Hunter to find email addresses and connect with anyone in seconds.
Features:
- Email syntax check
- Gibberish email test
- Webmail email check
- Disposable email address validation
- SMTP check
- MX Records
- Accept all domain check
Free Trial: 50 emails per month.
Accuracy: 95%
Cost: $0.06 per email check.
Integrations: Chrome Extension, Firefox add-on, Google Sheets add-on, Salesforce, Pipedrive, HubSpot, Zoho, and Zapier.
Data Security: GDPR compliant.
15. Clearout
Clearout is another leading free email validation and verification service to batch-verify your email data.
Improve your email reputation score and deliverability by using Clearout to clean your email database. Sign up for a free account to get 500 free credits that you can use to validate 500 emails.
Features:
- Accurate results and affordable pricing
- Accelerated turnaround
- Duplicate emails remover
- Yahoo and AOL account validation
- Catch-all verification
- Blacklist verification
- Risk verification and autosuggestion
- Disposable email check
- SMTP check
- MX Records validation
- Free account verification
Free Trial: 500 credits.
Accuracy: 98%
Cost: 5,000 credits at $20/month.
Integrations: MailChimp, Zapier, Mailerlite, WordPress, Google Sheets, Moosend, Active Campaign, etc.
Data Security: GDPR-compliant and military-grade security.
16. Find That Email
Find That Email is another free bulk email verification tool using mail server validation and double-checking to classify emails as valid or accurate.
You can use it to verify and find people’s emails and get 50 free monthly credits. Above all, your credits are not deducted for invalid emails.
Find That Email uses various checks to validate emails, such as MX Records and SMTP server verification. It performs the tests at least two times to provide more accurate results.
Features:
- Email duplication
- Mail server validation
- Spam-trap removal
- Typos eliminator
- Catch-all email address validation
- Role-based email account
Free Trial: 100 free credits every month.
Accuracy: 95%
Cost: 1,500 credits at $29 (monthly plan).
Integrations: Chrome extension.
Data Security: GDPR-compliant and military-grade security.
17. sift.email
sift.email is another freemium tool to check whether an email exists. It also performs multiple checks for validating emails, just like other bulk verification services on this list.
Signing up for this service will give you 200 free credits to validate emails. Unlike other online services, Swift.email is a bit cheaper, as you can use it to verify 1000 emails for just $5.
The only downside of this tool is that there is no support for 3rd party integrations, such as MailChimp, Zapier, etc., for better productivity and creating automated workflows.
Features:
- MX record check
- Typo correction
- List validation
- API support
- Role-based check
- Free email check
- Disposable emails check
Free Trial: 200 free credits (one time only).
Accuracy: 95%
Cost: 1000 credits at $5 only.
Integrations: Chrome extension.
18. Snov
Snov is another reliable and secure bulk email verification service for online validation. Its free plan never expires; you get 50 monthly credits to clean your list. The only limitation is that it doesn’t check emails from catch-all domains, resulting in less accurate results.
However, what separates it from others is that it only charges half credit for verifying an email. Therefore, if you want a service where you have to spend less and get more results, you can check Snov.
Features:
- Domain email Search
- Email verifier
- Email drip campaigns
- Email tracker for Gmail
- Professional email Search
- Disposable email verification
- Temporary unavailability detection
- Real-time email validation
Free Trial: 50 free credits per month.
Accuracy: 90%
Cost: 1000 email verifications at $39 per month.
Integrations: Chrome extension, HubSpot, Salesforce, Facebook Lead Ads, Slack, Trello, Google Forms, Twilio, etc.
Data Security: GDPR compliant.
19. DataValidation
DataValidation is another reliable and secure bulk email verification tool that offers 500 free credits to clean your email data.
After exhausting these one-time free credits, you must pay $0.07 per mail for up to 10,000 email verifications. It uses SMTP verification and other checks to detect invalid or spammy emails.
Features:
- Email list monitoring service
- Email verification API for batch processing
- Multiple upload formats
- Email append code and 99.9% uptime
- Duplication email removal
- Role-based and disposable email detection
- Mailbox verification
Free Trial: 500 free credits (one time only).
Accuracy: 99%
Cost: $0.007 per email up to 10,000.
Integrations: MailChimp, Emma, Hubspot, Zapier, GetResponse, etc.
Data Security: Complete GDPR compliant.
20. EmailMarker
EmailMarker is another bulk email verification service that checks whether your emails will deliver or bounce. However, its free trial only gives you 150 credits.
Emailmarker contains the MX Records for email verification and communicates with the SMTP server to check whether a mailbox exists for a given email.
The only downside is that it doesn’t support integrations with CRMs and sales tools like other free bulk email verifier tools on this list.
Features:
- Accurate syntax engine
- Spam trap control
- Active mail check
- Quality domain database
- Domain validation
- SSL Security (256-bit encryption)
Free Trial: 150 email credits.
Cost: 10,000 email verification at $21.
Accuracy: 97%
Turnaround time: 100,000 email addresses around 4 hours.
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21. DeBounce
Features:
- Minimize email bounce rates
- Call-all domain checker
- Email address syntax checker
- Validation API
- Remove duplicate emails
- Anti-greylisting technology
- Spam-trap removal
- Domain confirmation and MTA validation
- Selectable download options
Free Trial: 100 free credits.
Accuracy: 98%
Integrations: Mailchimp, Hubspot, SendGrid, ConvertKit, Mailerlite, AWeber, InstaPage, etc.
Cost: 5,000 email validations at $ 0.002 per verification.
Check Out: DeBounce
22. ZeroBounce
Features:
- Spam trap and abuse email verifier
- AI. Email Scoring and Catch-All Validation System
- Real-time email list verification API
- Inbox placement tester
- Email server validator
- Check disposable emails
- Email bounce validator
- MX Record detection
Free Trial: 100 free credits (one time only)
Accuracy: 98%
Integrations: Zapier, Asana, Autopilot, Zoho CRM, AWeber, etc.
Cost: 5,000 email validations at $ 0.002 per verification.
Check out: ZeroBounce
23. SparkEmail
Features:
- Real-time verification
- End-to-end encryption for data security
- Classifies emails into valid, invalid, and catch-all categories after the bulk verification process is complete
- REST APIs support
- 24×7 customer support
- Export clean list as CSV, XLS, or PDF file
Free Trial: 100 emails per month.
Cost: 2500 email verifications at $5.
Check Out: SparkEmail
24. Blaze Verify
Features:
- Drag and drop interface
- MX record detection,
- SMTP provider information
- Disposable email checker
- Syntax and domain validation.
- Email provider integrations
- Customized exports
- Email verification API
- Gender detection
Free Trial: 250 emails.
Accuracy: 98%
Integrations: ActiveTrail, Mailchimp, AWeber, ClickFunnels, Agile CRM, Drip, Google Contacts, LeadSquared, OnePageCRM, SendGrid, Salesmate, etc.
Cost: 5000 email validations at $25.
Check Out: Blaze Verify
25. Correct.Email
Features:
- Duplicate email removal
- Invalid and temporary email removal
- ISO-certified and GDPR-compliant
- Flexible pricing plans
- Advanced spam-trap detection
- Bounced address removal
- Detailed reporting features
Accuracy: 99%
Free Trial: First, 100 emails.
Integrations: None.
Check Out: Correct.Email
Also Read: 5 Best Username Generators Based on Personality Types
26. AeroLeads
Wrapping Up
This summarizes our list of the 26 best free bulk email verification tools. Use them to clean your email database and start sending emails without worrying about your email service provider blocking them.
Most online bulk email verifications offer enough free credits and API requests to validate an email list of up to 1,000 emails.
You can use a workaround to validate your database if you have a list of more than thousands of emails. Split the list into multiple sub-lists and use various bulk email verification services to verify emails.
My favorite online email verification services are Email Verifier, QuickEmailVerification, Bouncer, Proofy, and DataValidation.
Email Verifier allows you to verify 20 emails simultaneously, but you can use it unlimited times. QuickEmailVerification provides you with 100 free credits every month.
Neverbouncer and Bouncer offer 1,000 free email verifications. Other than these tools, Proofy and ClearOut provide 500 free email verifications.
For developers, MaxValidator is best as it offers 600 free API queries for batch email verification.
