Top 5 Best Email Verification Services

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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.

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 [email protected][email protected][email protected][email protected], 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-EmailChecker:

Email Checker​ is a leader and we can say among the top 3 in the marketplace, offering an incredibly accurate bulk list cleaning service, real-time verification and ESP integration with syntax, format, domain and mailbox checking, at every price point. It offers a user-friendly dashboard, a professional and experienced 24/7 support team and a 99% deliverability rate.

‘Drag and drop’ dashboard interface enables you to simply upload your email list for immediate cleaning, with additional features such as preserving the list layout.

The Email Checker credit based system allows you to purchase a block of email cleaning credits that relate to your immediate email verification needs.

No matter what size email list you need to clean and verify, Email Checker offers a simple pay as you go pricing plan to meet your requirements.

  • Cost: Basic plans begin at $14 for 1000 verifications and $299 for 100,000 email verifications. Choose either pay-as-you-go or a monthly subscription; 
  • Accuracy: 97% Deliverability accuracy
  • Turnaround time: Process 200,000 email addresses in under three hours.
  • Free trial: Yes; receive 50 verification credits free upon registration, with no credit card required for free trial.
  • Real-time verification through API: Yes; Email Checker leads the industry, with detailed integration documentation for Python, Java, PHP, and C#.
  • Formats accepted for list and email uploads: .csv and .txt format
  • Format available for downloaded results: .csv or .txt formats, The cleaned file will have additional two cloumns, ‘Main Status Code’ and ‘Additional Status Code’. You can find the details about each status code from their site.
  • Customized / scalable services: Yes; please contact their sales team for more information.
  • Bulk email checker: Yes
  • Email duplication removal: Yes
  • Habitual complainer detection: Yes
  • Bad domain detection: Yes
  • Spam keyword detection: Yes
  • Role-based account detection: Yes
  • Catch-all account detection: Yes
  • Disposable email address (DEA) detection: Yes
  • DNSBLs and URI DNSBLs checked: No
  • Spam trap removal: Yes
  • Software download / installation required: No
  • Customer support: 24/7 professional support offered by their experienced and dedicated Helpdesk.
  • Privacy Policy / Data Protection Policy: Email data clients submit for processing is fully secure; please visit the Email Checker site to review their policy details.
  • Data security: Their environment offers both HTTP and HTTPS endpoints, providing customers options if, for any reason, they are unable to utilize one. Environment transport is firewalled and SSL secured whenever possible. All servers are hardened, and data access is restricted by policy. Only authorized server administrators and developers are permitted access to customer data, and their access is limited to incidents of troubleshooting or an investigation. Customer data is stored and replicated centrally in the EU, and processing servers are dispersed across different regions – the EU, US, UK, and ZA. Once data has been processed outside of the EU, it is no longer stored, and only the results are returned to the EU servers. Access is username and password protected. Where necessary, data fields are encrypted.
  • Additional Features –
    • Integrations: Email Checker offers different integration offers for various customer needs – such as automated batch file submission and retrieval using batch API, FTP account access, and even manual upload.
    • Bulk API: Batch API service designed from the ground up, for fast batch processing of large B2B lists (up to one million email verifications per day).
    • Dashboard: drag & drop integrace, user-friendly access.
    • API Responsiveness: Fast API with market-leading uptime and SLA – 99.97% in the past twelve months
    • Documentation: Detailed documented with lots of code examples, hosting in GitHub.
    • Yahoo verification: Email checker offers “extreme” Yahoo (and Ymail) options in their real-time API, for the highest possible accuracy.

2-ZeroBounce

ZeroBounce Homepage

ZeroBounce is an email list cleaning service helping businesses to achieve great email deliverability. The system detects bounces, spam traps, fake and abuse emails, thus ensuring email lists are accurate and up-to-date.

ZeroBounce helps to build a better sender reputation, and this is the key for getting emails in the subscribers’ inboxes. Furthermore, the company’s email scoring system, ZeroBounce A.I., offers in-depth feedback on catch-all emails and overall email activity levels.

Features:

  • Removes fake and invalid email addresses and prevents bounces.
  • Identifies spam traps, abuse, catch-all, and temporary emails.
  • Offers a robust real-time email verification API.
  • Appends missing information to email lists, such as name, gender, and location.
  • Eliminates duplicates at no charge.
  • 24/7 customer support.

List upload format: CSV or .TXT file
List download format: CSV or .TXT file

Best For: Businesses that send newsletters and marketing emails.

Price: The Freemium account offers 100 monthly email list cleaning credits for free. The Pay as You Go plan starts at $16 for 2,000 emails, while the subscriptions start at $15/month.

3- MillionVerifier – Highest Accuracy & Lowest Prices

MillionVerifier – Founded and operated by email deliverability expert Tamas Szabo.

MillionVerifier

MillionVerifier offers the most compelling email verification service. It emerges with its outstanding accuracy and super low prices.

Highest Accuracy
MillionVerifier guarantees that you will successfully deliver at least 99% of your emails. Having less than 1% bounce rate will protect your email reputation, improve your inbox and open rates, and ultimately will boost your profit.

Lowest Prices
MillionVerifier only charges $199 for 500,000 ($299 for 1 Million) email verifications that is the lowest by far on the market because they want their services to be available for all email marketers.

MillionVerifier is an email verifier that is designed to help you to remove all your bounces and to improve your email reputation. You can upload your email lists in a file or you can integrate with their API. MillionVerifier is operated by a European company and it is fully GDPR compliant.

Verify An Email Address With MillionVerifier

MillionVerifier’s Real-Time Email Verification DemoVALIDATEVALIDATIONS LEFT: 20NO CREDIT CARD REQUIRED FOR TRIAL

  • Cost: Only $199 USD for 500,000 Email Validations that is is $0.000398 per email
  • Accuracy: 99% Guaranteed Accuracy
  • Turnaround time: Process 100,000 email addresses in under one hour.
  • Free Trial: Yes; MillionVerifier offers a free trial with 200 email credits. No credit card is required to signup for free service.
  • Real Time Email Verification/API service: Yes. Sample codes are available in PHP, Go, Bash, Node, Python
  • Formats accepted for list and email uploads: TXT, CSV, XLS or XLSX
  • Formats available for downloaded results: CSV
  • Customized / scalable services: Yes. Please contact their support team.
  • Email duplication removal: Yes
  • Catch-all account detection: Yes
  • Software Download and installation required: No
  • Data Processing Agreement: MillionVerifier is fully GDPR compliant and you will be able to sing a Data Processing Agreement. Read their Privacy-Policy.
  • In addition to the above checks, inactive email accounts also detect Bad domains, Role Based accounts, Duplicates, Disposable email addresses (DEA).

When contacting MillionVerifier support you can always expect a professional response from their experts. The company standing behind the application stand out of the crowd by offering a 100% money back guarantee.

MillionVerifier combines simplicity with professionalism. Try their application today! Try their application today!View Plans & Signup »Ask MillionVerifier a Question »

4-. Hubuco – Best Email Verifier

Hubuco is the best email verification service provider who protects your email reputation.

Hubuco

Hubuco is a reputable British company, headquartered in London, UK. HuBuCo prides itself on being the most affordable and accurate email verification service provider. As per tests conducted, virtually all HuBuCo customers experience less than 1% hard bounce rate, when using their verification system. HuBuCo is very proud of the quality of their results and is the only email verifier that offers 100% money-back guarantee if your hard bounce rate is above 4%. Terms of Use apply.

Verify 100K emails with HuBuCo; it is only $175 with a usual 99%+ delivery rate. The verification credits you purchase from HuBuCo will never expire, and you won’t get charged for emails that they couldn’t verify. With HuBuCo, email list verification is incredibly simple, but if you are experiencing any difficulties, their friendly support team is available anytime.

  • Cost: 10k only $28; 100k only $175; 1M only $958 – credits never expire + 100% Money Back Guarantee. Click Here to get more details.
  • Free Trial Offered?: Yes, 3000 verification credits for FREE every month. No Credit Card required to use free trial.
  • Real Time Verification through API: Yes, sample php code available on GitHub
  • Provide Custom jobs: Yes, please contact support
  • Email Deliverability Accuracy: 99%+ delivery rate Source
  • Offers Bulk Verification: Yes
  • Bad domains detection: Yes
  • Spam Keywords detection: No
  • Role accounts detection: Yes
  • Catch-all accounts detection: Yes
  • Disposable email address (DEA) detection: Yes
  • Checking DNSBLs & URI DNSBLs: Yes
  • Software Download and installation required: No
  • Time to process 200k email addresses: less than 3 hours
  • Privacy Policy: Click here
  • Data Protection Policy: Click here
  • Support: 24/7 – Contact support
  • Additional Features –
    • Aside from removing virtually all hard bounces HuBuCo also offers a professional bounce analysis service to help eliminate your soft bounces too.
    • Market leader in both deliverability and prices
    • HTTPS, strict data protection policies and secure payments via credit card or PayPal.
    • All unknown emails are automatically reverified to ensure that any bad emails are filtered out of your email lists.
    View Plans & Signup »Ask Hubuco a Question »3. QuickEmailVerification.Com – Most Trusted Email VerifierQuickEmailVerification is the most trusted and enterprise grade email verification service.QuickEmailVerification offers online email list cleaning in bulk using real-time verification as well as batch processing. Because of their accuracy, speed (~ 200,000 emails verified in under three hours), and relative affordability, QuickEmailVerification is one of our top pick as a bulk email verifier.Why more businesses choose QuickEmailVerification over others?
    • Encrypted data storage for complete security of your data
    • One of the best priced services: starts at $4 for 500
    • Highest free credits for trial: Daily 100 credits absolutely free
    • Super-fast and fully reliable verification results
    • Very high, 99% verification accuracy.
    • GDPR compliant
    To date, QuickEmailVerification has helped over 70,000 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 APIsreal-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 QuickEmailVerificationQuickEmailVerification’s Real-Time Email Verification DemoVALIDATEVALIDATIONS LEFT: 20NO CREDIT CARD REQUIRED FOR TRIAL
    • 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: 99% 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.
    View Plans & Signup »Ask QEV a Question »4. Xverify.Com – Intelligent Email VerificationXverify 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 GuideCheck out this insightful wiki when choosing your provider.Auto Correction FeatureThe 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 ProtectionXverify’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 AccuracyxVerify’s accuracy rate is about 98% across all major email domains including Gmail, AOL, Yahoo, Hotmail, etc.Email Verification Response TimeMost 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.
    • Cost: Xverify offers the low rate of less than $0.01 per each email validation. Pay-as-you-go plans offer clients discounted fees for large-volume lists.
    • Accuracy: Xverify boasts a guarantee of 98% email deliverability after cleaning.
    • Turnaround time: 100,000 email addresses of B2C data may take one hour to finish. 100,000 B2B emails may take two hours. 10,000 emails may take approximately ten minutes to clean your email list.
    • Free trial: Yes; contact the Xverify sales team for a free list assessment and try before you buy.
    • Real-time verification through API: Yes; API and JavaScript implementation methods are available.
    • Formats accepted for list and email uploads: Upload your email lists in a .csv file format.
    • Format available for downloaded results: .csv format, The user will receive the same file with an additional ‘Status’ column, displaying the status of each email address.
    • Customized / scalable services: Yes; contact Xverify support for a project quote.
    • Email duplication removal: Unknown.
    • Catch-all account detection: No
    • High risk email detection: Yes; removes hazardous emails that damage your credibility.
    • Software download / installation required: No
    • Customer support: 24/7 support available for all clients.
    • Privacy Policy / Data Protection Policy: Find out more on their website’s listed privacy policy.
    • Xverify also checks for Habitual complainers, Bad domains, Spam keywords, Role Based accounts, Disposable email addresses (DEA).
    • Additional Features –
      • Affiliate Monitoring – XVerify’s affiliate Monitoring helps users identify which affiliate or sub-affiliates send you too much garbage data.
      • Accuracy ratio: For validating Yahoo & Outlook emails; one of the best solutions tested for high volume accuracy with Yahoo and Outlook email verification.
      • “Send Shield” technology: This is a unique 7-step email verification procedure to minimizes your risk of fraud
      • IP blacklist monitoring: Monitor your own IPs to detect blacklisting
    • User Questions & Answers (Answers by Xverify) ::
      • I see you can do real-time API calls. Will that process filter out people who have left jobs and their company email addresses are no longer valid?
        Yes – we do a real-time check to make sure the email is valid at the time of the verification.
      • What exactly do I receive back after verifying a list? The original list, with all data fields and a rating of each line item so I can remove them? Or good and bad email addresses in a list? Or a new list, with all bad email addresses removed?
        You will get the list back exactly the way you post it to your account. Xverify does not make any changes in columns or rows, but we add an additional “status” column in your file next to the email address field so that results can be sorted accordingly.
    View Plans & Signup »Ask Xverify a Question »5. ZeroBounce.Net – Most Accurate Email Verification AppZeroBounce 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 providerCheck 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 ZeroBounceZeroBounce’s Real-Time Email Verification DemoVALIDATEVALIDATIONS LEFT: 20NO CREDIT CARD REQUIRED FOR TRIAL
    • Cost: ZeroBounce basic plan starts at $16 for 2000 email credits (1 email credit = 1 email verification). They also provide bulk verification plans starting at $390 for 100,000 email credits and for higher plans, email verification cost drops as low as $0.001175 per email verification and credit never expires. ZeroBounce offers special 10% discount to visitors of this blog on first time purchases for new customers. To get this offer, just initiate a chat or send them an email at [email protected]
    • Accuracy: 98.8% verification accuracy
    • Turnaround time: Process 100,000 email addresses in under one hour.
    • Free trial: Yes; ZeroBounce offers a free trial with 100 email credits. No credit card is required to signup for free service.
    • Real-time verification through API: Yes; API available for real time and bulk email verification.
    • Formats accepted for list and email uploads: .csv and .txt formats
    • Format available for downloaded results: Encrypted zip file that contains .csv and pdf report. Very detailed reporting, you should try it.
    • Customized / scalable services: ZeroBounce website states they offer custom jobs; contact their support team for more information.
    • Email duplication removal : Yes
    • Catch-all account detection: Yes
    • Greylist checking: Yes; Automatic re-verification of grey listed email addresses.
    • Spam trap removal: Yes
    • Software download / installation required: No
    • Customer support: 24/7 support via ticket and limited chat and phone support.
    • Privacy Policy / Data Protection Policy: ZeroBounce is a GDPR compliantEU-U.S. and Swiss-U.S. Privacy Shield Certified email verification provider. More information can be found in the privacy policy outlined on their website.
    • In addition to above checks, ZeroBounce also detects Habitual complainers, Bad domains, Spam keywords, Role Based accounts, Disposable email addresses (DEA), DNSBLs and URI DNSBLs.
    • Additional Features –
      • Abuse/Spam Trap detection: Removes known email complainers and spam traps from your list.
      • Email Data Append: Appends missing data such as first and last name, location, gender or city, state/region, country when the registration IP is provided.
      • IP Information Append: Supplied registration will be appended and details like country, region, city, zip will be added.
    • User Questions & Answers (Answers by ZeroBounce.net) ::
      • Does you service output a possibly corrected email address for emails that were invalid?
        Yes, we are able to detect common typos in popular email domains and suggest the correct email address. We call it “Did you mean”. This is very helpful when people have a form on their website and use our real time validator.
      • How detailed are the reports that we receive back? I’ve used TowerData and the reports were very detailed but their verifications didn’t seem to be very accurate.
        The reports are very detailed. We provide a zip file with all of your emails broken out. We also provide a PDF overview which will list to your top 10 domains, validation results and our data append results.

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