Your results are divided into 4 simple statuses: Valid, Invalid, Risky, and Unknown, with over 15 additional advanced qualifications. This clear classification allows you to quickly understand the status of each analyzed email.
- Captain Verify ›
- Clean bulk email lists tool
Email list cleaner
import your list, remove invalid addresses, export a clean file
20% of emails become obsolete in just one year. Protect your IP reputation and ensure the best deliverability to reach the inbox with Captain Verify.
4.4/5 based on 70+ verified reviews on Trustpilot and Capterra
What is email list cleaning?
This is a verification process (without sending email) to find out if the email addresses of your database are valid. To check if an email will not result in a bounce, our system will not only check the syntax of an email, it will check the DNS records, the MX and will establish a connection with the SMTP server. Our algorithm is able to go even further with better precision thanks to our automatic learning system (machine learning), which means that it will help you reach more emails. Regular cleaning keeps your bounce rate under the 2% that mailbox providers recommend: your sender reputation stays intact and your campaign deliverability follows.
Why do you need to clean up your mailing list?
Secures deliverability
Poor quality of your email list could ruin your reputation as a sender and your IP. Whenever there is a bounce, your deliverability takes a hit. You could end up identifying as a spammer!
Increase your engagement rate
Invalid emails will never engage with your content! Unverified emails will reduce your reception box placement which will have an impact on your opening rates and click rates. It is better to privilege quality than quantity!
Save time and your money
Do not waste your resources on invalid emails!
Not only will it cost you unnecessary money, but you could even be blacklisted, which will make you waste a lot.
Not only will it cost you unnecessary money, but you could even be blacklisted, which will make you waste a lot.
How does email list cleaning work?
1 - Import a TXT/CSV file
Import a list from your computer to start your verification by e-mail.
2 - Launch the verification
Your list is verified in real time. It will only take a few minutes.
3 - Download the results
A detailed report with emails organized by status: valid, invalid, risky, unknown. Processing a 10,000-contact list takes a few minutes and each address analyzed uses 1 credit.
Verification process and features
Captain Verify uses a process of verifying several steps for your verification.
Included for every email list verification and also on our email verification API.
Included for every email list verification and also on our email verification API.
MTA verification
Check the MTA configuration status (message transfer agent).
MX detection
Our tool will find all emails with inactive or non-valid MX.
SMTP verification
Test SMTP communication to find out if the service is available.
Duplicates
You have the choice to keep or delete all emails in doubles.
Domaine detection poorly spelled
Captain Verify can provide suggestions on poorly seized emails, spelled.
Detects Mailboxes full
Put aside the emails whose mailboxes are full and which will no longer accept any messages.
Anti greylisting
When we meet a greylisting, we will wait a maximum of 30 minutes and try to validate this email.
Catch-All detection
We identify the Catch-All domains which accepts all the emails even if email does not exist.
Roles detection
Contact@ or info@ ... These emails are not addressed to someone specific.
Disposable emails detection
Get rid of useless email addresses. We identify temporary emails.
Detection of protected emails
We identify emails protected by antispam service.
Spamtrap detection
Spamtrap detection corresponding to our indicators.
Free emails detection
We identify free webmails (Gmail, Yahoo, etc ...)
Standardized email
We eliminate labels for gmail: example+test@gmail.com will be example@gmail.com
Email verification API
You can integrate the Captain Verify Email API into your own applications.
Email list verification API
The email listing API is ideal for those who need to directly validate a base.
Results you can understand
Easily segment the results for download without the need for additional work in Excel or other software. This enables you to categorize your data intuitively and quickly, saving you valuable time.
Prices
Pricing is simple and affordable.
1 000
Email Verifications
5 000
Email Verifications
10 000
Email Verifications
25 000
Email Verifications
50 000
Email Verifications
100 000
Email Verifications
250 000
Email Verifications
500 000
Email Verifications
1 000 000
Email Verifications
5 000 000
Email Verifications
More than 5 million emails to check? Contact us.
Frequently asked questions
At least once or twice a year, and ideally before every major campaign. A B2B list decays by several percent a month between job changes and abandoned mailboxes: the longer you wait, the bigger the damage.
CSV and TXT. You can also plug the cleaning directly into your forms or CRM through the list verification API.
Signing up gives you 100 free credits, with no subscription. After that, pricing is pay-as-you-go: each verified address uses 1 credit and the cost per address drops with volume.
Invalid and misspelled addresses, duplicates, disposable domains, spam traps, catch-all and role-based accounts: everything that inflates your bounce rate or hurts your inbox placement. The machine learning layer keeps improving detection accuracy over time.
Data security
Your data is safe with us! We are fully GDPR compliant, our data centers are located in France, and your emails are encrypted in transit and at rest throughout the system. You can also delete your email lists whenever you wish; otherwise, we will do so automatically after 7, 30, or 90 days. Furthermore, our servers are ISO 27001 and SOC 2 certified. To learn more, visit our security page.