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Top 10 Bulk Email Verification and Validation Services Compared

What is a Bulk Email Verification Service?

Bulk email list verification – an indispensable tool for companies sending mass emails – determines whether or not a list of email addresses is fully valid and deliverable. The process involves an address-by-address analysis of each email on an uploaded list and is offered as hosted software.


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How Does Email Address Verification Work?

The legitimacy of an email address can be measured through a combination of validation techniques and – depending on the internal database – proprietary algorithms.

At the end of the list validation process, any invalid addresses will have been filtered out, leaving a clean, fully deliverable email list, ready for marketing and business requirements.

Below, we’ve described in detail just how the email validation process – essentially, a process of separating the wheat from the chaff – works.

  1. Email Address Syntax Check: This removes improperly formatted email addresses, according to IETF standards.
  2. Domain/MX Records Check: This verifies the DNS entries of an email address. If a domain is found to be invalid, or an MX entry is missing, this process marks the corresponding email address as invalid.
  3. Role-Based Account Detection: Email sends to role-based such as postmaster@, info@, sales@, admin@, etc. can negatively impact your deliverability, and even blacklist you with some ISPs. This process detects and flags such addresses.
  4. Disposable Email Address (DEA) Detection: Throwaway/disposable email addresses, or “junk collector” email addresses,” are detected and processed
    appropriately. These are usually used for signup forms or to bypass login forms which require a valid email address.
  5. Honeypot/ Spam Trap Detection: This detects spam seeds, BOTs, honeypots, blacklisted, or bogus email addresses by checking the addresses in the list
    against the known list of email addresses/domains, used for trapping spammers.
  6. Checking DNSBLs and URI DNSBLs for blacklisting: A DNS-based blackhole list (DNSBL) or Real-time Blackhole List (RBL) is a list of IP addresses often used for spamming. A URI DNSBL is a DNSBL that lists domain names which have been found in the body of spam email messages but generally, have not been found inside legitimate messages. In the process, email addresses and IP addresses are checked against known DNSBLs and URI DNSBLs to trap spam networks.
  7. Final Verification: This phase performs deep-level extended SMTP verifications on each email address. The addresses will be pinged for mailbox existence without sending an actual email to the inbox.

Who Are The Top 10 Bulk Email Verifier Services?

The below is a list of the best email list cleaning and email validation services identified by AccuWebHosting.com thru ongoing exhaustive analysis. Please note, variable listing fees may affect the position on the list. This compensation, however, unequivocally does not influence our review process.

1. ZeroBounce.net – Most Accurate Email Verification App

ZeroBounce is an award-winning email validation service provider.

ZeroBounce is a leading online email validation system to ensure that companies sending complex and high volume email avoid deliverability issues. This is accomplished through the invalid email address and bounced email elimination, IP address validation, and verification of key recipient demographics. ZeroBounce is the best overall email verification service provider. Check out the ZeroBounce Guide to improve Deliverability and Inbox Rate. For developers, you can get all the guides and documents of ZeroBounce here.

What makes ZeroBounce to standout from others?

ZeroBounce is GDPR compliant, has an accuracy guarantee of 98.8%, is part of the US-EU-Swiss Privacy Shield and is one of the best-priced email validation providers. ZeroBounce takes Email Verification one step ahead from others with their newly launched ZeroBounce A.I. system (artificial intelligence email address scoring system).

Verify an Email Address with ZeroBounce

ZeroBounce’s Real-Time Email Verification Demo

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2. Xverify.com – Intelligent Email Verification

Xverify is well-known for their intelligent Email Verification Service.

Xverify is a clear industry leader in bulk email list verification service. They validate all email addresses and can validate both B2C and B2B emails. Accuracy, Security, Trust, and Customer service is what sets them apart.

What makes working with them easy, is that you can call and speak directly with an email consultant. The company has built a strong reputation in email verification industry for over 7 years, having 2 office locations in the United States.

Being that they are US Based Company, you can trust them to safely and securely process your data. Be very cautious considering any providers who don’t give you the option to call and speak with someone or boast similar levels transparency. The security and privacy of your data is their #1 Priority. Click and Call to speak with a live consultant today.

Xverify is CERTIFIED in the EU-U.S. PRIVACY SHIELD FRAMEWORK and the SWISS-U.S. PRIVACY SHIELD FRAMEWORK. They make available DPA’s (Data Processing Addendums) to all clients who require them as part of their GDPR Compliance.

View Xverify’s Email Verification Buyers Guide

Check out this insightful wiki when choosing your provider.

Auto Correction Feature

The typos alone can create 10% of invalid email addresses in a list. Xverify’s built-in auto-correction can easily notify the end users when they spell a domain incorrectly.

Fraud Protection

Xverify’s built-in fraud protection ensures that an email address is not a temporary account or involved with any online fraudster and chargebacks.

Email List Cleaning Accuracy

xVerify’s accuracy rate is about 98% across all major email domains including Gmail, AOL, Yahoo, Hotmail, etc.

Email Verification Response Time

Most of the time, validating major players like AOL, Comcast, Outlook, Yahoo, and Gmail take less than 1 second. While validating a B2B email address, response time may be slightly higher.

Ask Xverify a Question »

3. EmailListVerify.com – Email List Verification Simplified for You

EmailListVerify makes the verification of your bulk emails quite simple.

A leader in the email deliverability market, EmailListVerify ensures that your list of email addresses are validated securely and easily, with the best possible sender score. By removing dead addresses, EmailListVerify helps organizations launch fast, cost-effective email marketing campaigns.

EmailListVerify boasts a 97% accuracy, guaranteeing zero false positives and a 10x reduction in bounce rates. Their email verification algorithm includes domain validation, syntax verification, spam-trap removal, risk validation, MTA validation, MX records validation, complainers verification, real-time bounce email checking, and email de-duplication.

EmailListVerify gives its clients a simple web interface to process batches. They also provide an API which can be integrated with a web application or a web form. After batch validation, EmailListVerify sends a detail report, showing list activity and improvement over time.

Verify an Email Address with EmailListVerify

EmailListVerify’s Real-Time Email Verification Demo
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4. DataValidation – Email Verification you can trust

DataValidation is one of the leading email verification service providers around the globe.

DataValidation (Headquartered at Atlanta) is a leading email deliverability solution provider for corporate email service providers and email marketers. Email marketers can verify their email list quickly and securely, by using one of the supported ESP Integrations or Batch Verification APIs. Datavalidation works directly with ESPs, so you don’t have to worry about your data security.

DataValidation is offering a special promotion to the visitors of this blog. Receive a 10% discount on your first purchase, whether its a one-time verification or one of their larger token packs that can be used over time. If you purchase their services in November 2018, you will receive a one-year subscription of AutoPilot Large allowing you to have up to 500,000 emails monitored weekly (a $240 value). If you see the quality of your email list deteriorating over time, verify it to increase deliverability and ROI, and to protect your sender reputation. To claim this special offer, you can initiate a live chat with them or send them an email at support@datavalidation.com.

It easily integrates with the most popular email service providers like MailChimp, AWeber, MailGun, SendGrid, etc. to automate the email list validation process. They do offer free verification for 100 email accounts at signup, as well as free list quality report for every list. Furthermore, they are available 24/5 to answers your questions.

DataValidation is GDPR compliant and offers 99% Deliverability Guarantee. Free list monitoring with Autopilot is an added advantage when you are using their service. Apart from this, they provide the most comprehensive API for real-time and bulk email verification.

When you are using DataValidation as your email verification provider, you have an option to choose the region of the verification servers (available upon request). You can select the region of the verification servers to be in the EU or North America.

DataValidation’s Real-Time Email Verification Demo

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  • Cost: DataValidation’s basic plan for 1000 verification starts at $7. Their bulk email verifiation plan for 100,000 email accounts costs $300.
  • Accuracy: 99% Deliverability Guarantee
  • Turnaround time: Process 100,000 email addresses in under two hour.
  • Free trial: Yes; DataValidation offers a free trial with 100 email credits. No credit card is required to signup for free service.
  • Real-time verification through API: Yes, for multiple platforms, Realtime API and Batch API.
  • Formats accepted for list and email uploads: .csv and .txt formats
  • Format available for downloaded results: .csv and .txt formats
  • Customized / scalable services: Yes
  • Email duplication removal : Yes
  • Catch-all account detection: Yes
  • Spam trap removal: Unknown
  • Habitual complainers detection :: Yes
  • Honeypots/Spam traps detection :: Yes
  • Software download / installation required: No
  • Customer support: 24/5 via live chat and email
  • Privacy Policy / Data Protection Policy: DataValidation is a GDPR compliant. More information can be found in the Data Protection and Privacy Principles outlined on their website.
  • Additional Features
    • Capacity in terms of processing email validation
      They do not have any limits, you can validate as many lists with as many email addresses as you need.
    • Custom verification servers
      To help you stay in compliance with GDPR requirements, you can chose to verify email addresses only on EU servers.
    • Trusted monitoring network
      DataValidation uses a global network of servers that are trusted by Internet Service Providers all over the world.
Ask DataValidation a Question »

5. EmailMarker.com – Email List Cleaning Service

EmailMarker is one of the most useful tools for email list cleaning.

EmailMarker is one of the leading email list cleaning service provider for email verification. Being in the industry for many years, EmailMarker takes pride in delivering email lists cleaning services of incredible quality.

In the recent years, EmailMarker has made a great transformation using an automated self-service software. Due to this, the client’s are allowed to upload their lists online on the emailMarker web application, and the system handles everything very easily and very fast. Filtering low-quality emails this software protects your reputation and boosting your email campaign.

The level of professionalism has made EmailMarker a successful provider and all the clients are always satisfied with the excellent results. They handle every customers’ lists with great responsibility and ensure the clients that, they prioritize safety more than anything. This is the reason that various huge companies trust EmailMarker with their data and continue working with them every time. They do provide a full refund if you receive more than 5% bounce-backs from the cleaned email list.

EmailMarker diverse and very functional team is always ready to take challenges and works with passion and devotion.

Verify an Email Address with EmailMarker

EmailMarker’s Real-Time Email Verification Demo
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  • Cost: Basic plans begin at $3 for 1000 email verifications and $161 for 100,000 email verifications. Use coupon code ACCU25 for an additional 25% discount.
  • Accuracy: 97% deliverability guarantee.
  • Turnaround time: Process 100,000 email addresses in under four hour.
  • Free trial: Yes; 150 verifications free at sign-up.
  • Real-time verification through API: Yes; for PHP, Python, Ruby, and C#.
  • Formats accepted for list and email uploads: Email list for verification is accepted in .csv, .xls, .xlsx, .txt format.
  • Format available for downloaded results: .csv, Once the list is cleaned, the client receives two files. One file contains cleaned email address and the second file contains the original list with a new column for email status code.
  • Customized / scalable services: Yes
  • Email duplication removal: Yes
  • Catch-all account detection: Yes
  • High risk email detection: Information not availalbe.
  • Software download / installation required: No
  • Customer support: Limited online support via live email and live chat; phone support available in English.
  • Privacy Policy / Data Protection Policy: Find out more on their website’s listed privacy policy.
  • In addition to above checks, EmailMarker also detects Habitual complainers, Bad domains, Spam keywords, Role Based accounts, Disposable email addresses (DEA), DNSBLs and URI DNSBLs.
  • Additional Features
    • Email de-duplication: Identifies and merges duplicate records to reduce cost.
    • Accurate syntax engine: Detects invalid email formats while allowing legitimate ones to pass through.
    • Active mail check: Verify whether mail to a mailbox will bounce or deliver.
    • Quality domain database: This accurately confirms the condition of every email domain.
    • MailChimp compatible: EmailMarker will import and export email lists from the MailChimp platform.
    • SSL Security: 256-bit encryption
  • User Questions & Answers (Answers by EmailMarker) ::
    • What will I receive back after sending EmailMarker a list for verification?

      EmailMarker returns two files, the first file contains only the valid emails address and the second file will contain the original email list, with a new column for email status.

    • Does your website keep the emails and information I upload? I want to ensure the information isn’t used by the website for anything and my contacts’ emails are safe.

      We don’t sell or use any information about your email contacts, all your data is encrypted and stored under the rules of our privacy policy and is only accessible by someone with login credentials.

Ask EmailMarker a Question »

6. MyEmailVerifier – Best Email Validation Services

MyEmailVerifier offers very fast and simple email verification service.

MyEmailVerifier is a privately owned Email List Verification service provider with 96% deliverability. MyEmailVerifier is an emerging vendor with effective and a helpful email verification tool. MyEmailVerifier’s mission is to boost your leads and help you focus on generating new business.

MyEmailVerifier’s email list verification service provides real-time verification API for businesses who rely heavily on email marketing. MyEmailVerifier boosts conversions by improving email deliverability. Their user-friendly interface is making the difference when it comes to cleaning an email list. In a nutshell, MyEmailVerifier is an email validation tool that suits companies of every size when it comes for sustainability and affordable pricing.

Verify an Email Address with MyEmailVerifier

MyEmailVerifier’s Real-Time Email Verification Demo
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  • Cost: Pay-as-you go. No monthly payments or upfront fees. Basic plans begin at $5 for 500 email verification credits. Additional tier options: $10 for 1000 verifications, $35 for 5000, $140 for 20,000, and $280 for 50000 Email verifications.
  • Accuracy: 96% deliverability guarantee.
  • Turnaround time: Process 1000 email addresses under 45 minutes.
  • Free trial: Yes; the first 100 verifications are free; signup is required.
  • Real-time verification through API: Yes; API available with JSON.
  • Formats accepted for list and email uploads: TXT and CSV
  • Format available for downloaded results: TXT
  • Customized / scalable services: Yes
  • Email duplication removal: Yes
  • Catch-all account detection: Yes, it displays it with unknown status.
  • High risk email detection: Yes, it displays it with unknown status.
  • Software download / installation required: No
  • Customer support: Limited online support via email.
  • Privacy Policy / Data Protection Policy: Privacy Policy is documented on the website and data handling is completely safe within the content.
Ask MEV a Question »

7. QuickEmailVerification.com – Most Trusted Email Verifier

QuickEmailVerification is one of the most trusted provider by many companies, startups and ESPs.

QuickEmailVerification offers online email list cleaning in bulk using real-time verification as well as batch processing. Because of their accuracy (over 95%), speed (~ 200,000 emails verified in under three hours), and relative affordability, QuickEmailVerification is one of our top pick as a bulk email verifier.

To date, QuickEmailVerification has helped over 50,000 businesses around the globe – from SMBs to Fortune 50 companies – with their deliverability solutions.

Their email verification process incorporates seven different validations, including syntax validation and the checking of mailbox existence. At the end of the verification process, clients receive a detailed report, with all safe-to-send emails cleaned and identified and placed in a new ready-for-mailing list. QuickEmailVerification verifies domestic and international B2C and B2B emails.

QuickEmailVerification completes two different APIs: real-time API and bulk verification API. The real-time API, which is a nearly instantaneous process, checks new submissions on a form, while bulk email verification API processes a full batch of uploaded email addresses and validates each one.

Verify an Email Address with QuickEmailVerification

QuickEmailVerification’s Real-Time Email Verification Demo

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  • Cost: QEV’s fees begin at $4 for 500 credits (1 credit = 1 email verification), and decrease exponentially with increased verification volume. Monthly plans offer increased savings, with the rate dropping to as low as $0.0005 per email. One-time plans are also available.
  • Accuracy: 95%+ email deliverability guarantee (view details)
  • Turnaround time: Process 200,000 email addresses in under three hours.
  • Free trial: Yes; QEV offers a free trial which will clean 100 emails per day. No credit card is required in order to sign up and utilize their free email verification credits.
  • Real-time verification through API: Yes; immediate response – less than a second.
  • Formats accepted for list and email uploads: .xls, .xlsx, .ods, .csv and .txt formats
  • Format available for downloaded results: .csv
  • Customized / scalable services: QEV’s website states they offer custom jobs; contact their support team for more information.
  • Catch-all account detection: Yes
  • Software download / installation required: No
  • Customer support: 24/7 friendly, personalized service support
  • Privacy Policy / Data Protection Policy: This information can be found in the privacy policy outlined on QEV’s website.
  • In addition to above checks, QuickEmailVerification also detects Habitual complainers, Bad domains, Spam keywords, Role Based accounts, Disposable email addresses (DEA).
  • Additional Features
    • Email validation capacity: 200,000 email addresses can be validated in just two to three hours using their self-service application.
    • Accuracy ratio for validating Yahoo and Outlook emails: High; among the best in the industry.
    • Importing and verifying email list from other ESPs: QuickEmailVerification boasts seamless integration with major ESPs, such as MailChimp, Campaign Monitor, Emma, GetResponse, VerticalResponse, AWeber, ConstantContact, and many others.
  • User Questions & Answers (Answers by QEV) ::
    • Does QEV provide data validation services that can be integrated with our homegrown database and Marketo database through API?

      Yes, by integrating our email verification API with your own application or with Marketo, you can validate your email addresses in real-time. For pricing, please visit our website.

Ask QEV a Question »

8. MailboxValidator – Hassle Free Email Verification Service

MailboxValidator is an easy-to-use email list cleaning service that helps to reduce your bounce rate, while boosting sender reputation.

It validates your email lists to check for invalid or undeliverable emails so that you can maximize your marketing campaign potential. You can either upload your email list and clean it in bulk using the CSV format, or integrate with MailboxValidator API.

MailboxValidator interface is fully integrated with major ESP (Email Service Provider). Alternatively, a list can be imported from an ESP within few minutes which makes the process fully secure. Integration is available for MailChimp, Zapier, AWeber, Mailgun, Campaign Monitor, SendGrid and SparkPost.

Verify an Email Address with MailboxValidator

MailboxValidator’s Real-Time Email Verification Demo

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  • Cost: MailboxValidator provide basic bulk plan starts at $19.95 for 1000 email validation for 30 days with 24/7/365 email support. To verify huge bulk list it costs $0.0007 per validation. Meanwhile, the API plan starts at $29.95 for 3,000 queries per month. MailboxValidator offers the low rate of less than $0.0009 per each email validation for large-volume email queries.
  • Accuracy: 96% deliverability guaranteed.
  • Turnaround time: 200,000 email addresses will be processed within 24 hours time.
  • Free trial: Yes; For bulk plan, user can sign up for free trial which will give 100 verification. For API plan, 300 Queries will be given to free trial plan MONTHLY.
  • Real-time verification through API: Yes; The validation results in either JSON or XML format. Sample code is available in PHP, Java, VB.NET, C#, Python.
  • Formats accepted for list and email uploads: CSV
  • Format available for downloaded results: CSV
  • Customized / scalable services: No
  • Privacy Policy / Data Protection Policy: Find out more on their website’s listed privacy policy.
  • Software download / installation required: No
  • Email duplication removal: Yes
  • Catch-all account detection: Yes
  • Greylist checking: Yes
  • Suppressed Email Checker: Yes
  • High risk keyword email detection: Yes
  • Bad domain detection: Yes
  • Role-based account detection: Yes
  • Disposable email address (DEA) detection: Yes
  • Spam trap removal: Yes
Ask MBV a Question »

9. EmailListValidation.com – Email List Cleaning Service

EmailListValidation is one of the most useful tools for identifying deliverable emails.

Headquartered in Anaheim, CA, EmailListValidation is one of the prominent email validation service providers. With 97% of accuracy, EmailListValidation providers email verifications services to their 1500+ customers in 85 Countries. It is also GDPR compliant.

EmailListValidation quickly validates your existing email list, ensuring that you only send emails to the real users. It also helps you to remove all duplicate email addresses from your list. You will definitely enjoy cleaning your bulk email list with their easy to use interface.

The major features include: “Email deduplication”, “Spam-trap removal”, “Risk validation”, “MTA validation”, “Domain confirmation”, “Complaints Removed”, “Syntax eliminator”, and “Minimize Bouncing”.

  • Cost: Basic plans begins at $19 for 2.5k verification and you can scale upto 2M at just $1600 and have pay as you go plan. Use “STOPBOUNCE” coupon code to get 30% discount in any package.
  • Free Trial: Yes, 100 Free verifications during 10 days. Signup is required. (1000 Verifications more once you buy any of our package.)
  • Real Time Email Verification/API service: Yes, for Python, Ruby, PHP, and C Sharp.
  • Provide Custom jobs: Yes
  • Accuracy: 97% deliverability guaranteed.
  • Turnaround time: 200,000 email addresses will be processed in two to three hours using their self-service application.
  • Formats accepted for list and email uploads: Upload email list in .TXT, .XSL or .CSV format.
  • Format available for downloaded results: .TXT, .XSL or .CSV
  • Customized / scalable services: Yes; contact their sales team.
  • Email duplication removal: Yes
  • Catch-all account detection: No
  • High risk email detection: Yes
  • Software download / installation required: No
  • Customer support: Limited online support via email, phone support is available in English.
  • Privacy Policy / Data Protection Policy: Find out more on their website’s listed privacy policy.
  • Major Clients: L’OREAL, Toyota, Ernst&Young, Shopify etc.
Ask EmailListValidation a Question »

10. Towerdata – Email Checker at it best

TowerData found in 2002, is one of the leading email validation service provider today. They provide an easy to access tools and services for kick-starting a multi-channel marketing campaign.

TowerData’s fast, accurate and secure Email Validation service can remove bad emails from your list, leading to higher opens, clicks, and conversions.

  • Cost: Upto 1-99K Emails $0.01 per query, 100k-249k Emails $0.009 per query
  • Accuracy: 95% deliverability guarantee
  • Turnaround time:Unknown
  • Free Trial: Upto First 100 email addresses
  • Real Time Email Verification/API service: Yes
  • Formats accepted for list and email uploads: Unknown
  • Format available for downloaded results: Unknown
  • Customized / scalable services: Yes
  • Email duplication removal: Yes
  • Catch-all account detection: Yes
  • Software Download and installation required: No
  • Privacy Policy / Data Protection Policy: Both these policies are laid out on the Towerdata website.
  • In addition to above checks, Bounceless also detects Habitual complainers, Bad domains, Spam keywords, Role Based accounts and Disposable email addresses (DEA).
  • Additional feature
    • Owns Proprietary Domain Database which ensures the most accurate status of every email domain.
    • Email Active Metrics: Tells you how old an email is, how active it’s been, and when it last opened.
    • Detailed Status Codes: Provides 30 diagnostic codes to precisely categorize which emails are bad and why.
Ask Towerdata a Question »

Why is Email Address Verification so important?

Most websites have forms asking for customer details, including an email address. While filling out such forms, it’s not uncommon for users to enter an incorrect email
address – whether intentionally or by mistake. All those incorrect email addresses added to your lists will be inaccurate – and undeliverable.

If you send emails to such addresses, the ratio of bounce-back emails will increase significantly. This bounce-back negatively impacts your mail server reputation, which is constantly monitored by Yahoo, Gmail, AOL, Hotmail, and other ISPs.

If your IP address develops a poor reputation, it may get blacklisted by popular email services like Gmail and the like.

This means that if you plan to run bulk email marketing campaigns, such as newsletters or sales emails, the identification and removal of invalid email addresses is essential.

Email verification ensures your email list is clean and thoroughly valid, which helps reduce bounce-back, ultimately saving you time and money.

Validating email addresses also helps you to maximize deliverability of your marketing campaign, and separates low-quality addresses from high-value contacts.

By harnessing the power of email list validation services, you can enjoy peace of mind with every send, knowing your emails go out to real, live humans.

Quick Comparison of the Best Email Verification Services

Bulk Email Verifiers ZeroBounce Xverify EmailListVerify DataValidation
100k Email Verifications $375 $400 $169 $300
Offers
Free Trial?
Yes Yes Yes Yes
Total Free Email Verifications 100 Credits
One Time
100 Credits
One Time
100 Credits
One Time
100 Credits
One Time
Validation Accuracy Ratio 98.8% 98% 99% 97%
Credit Card Required for Signup? No No No No
Time required for 200k Validation < 2 hours < 2 hours < 3 hours < 3 hours
View Plans » View Plans » View Plans » View Plans »

Email verification domain is filled with never ending number of service providers, which makes it difficult to enlist all. Some of the notable service providers are Correct.email, DeBounce, EmailListValidation, EmailHippo, NeverBounce, Kickbox, BriteVerify, Hunter, MailFloss, ListWise, DataValidation and more.

Do you have user experience with any of the above email verification services? If yes, we would like to hear that. Please comment your experience about any of the above company.

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