Online Email Verifier

Email Verification Service

Atomic Verifier Online

Online Platform for Verifying Email Addresses

Before sending emails to lists you have not emailed for some time, you need to verify email addresses. Email verification will decrease your bounce rate which will result in better delivery and inboxing rates.

Atomic Verifier Online is a service that can check your mailing lists quickly and efficiently by online email checking.

Main Features of Online Email Verifier

Two-step verification

You can check email addresses for validity in two steps: syntax and domain verification. Our online verifier service allows to confirm the validity of emails with a good degree of certainty.

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When the process of verification finishes, the software provides detailed statistics for the results. The program defines valid/invalid emails and emails that have problems, such as having no MX record, unknown hostname or no answer from the hostname.

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You can get qualified help if you have any questions about using our service. Though the interface is simple and intuitive, rest assured that our support team is ready to help via online chat, phone, or email.

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And for other purposes »

How to Start

1Create an Atomic Verifier Online account.
2Log into your Member Area and go to the “Create New Task” menu.
3Enter a task name and description.
4Load the mailing list.
5Click «Verify» and get checked email addresses.

Atomic Email Verifier Online

Verification of email addresses in the mailing list is now as simple as possible: just register for our service, add a task, and upload your mailing list. After you click the “Start” button, the process of checking email addresses begins, the duration of which depends on the size of the downloaded list.

Online Email address verification runs in multithread mode, which makes it possible to significantly speed up the verification process. The average speed check can range from 10 to 30 addresses per second or 1800 addresses per minute. You will be able to check lists of thousands of addresses at high speed after purchasing a subscription to the service.

You will receive ordered lists after the work done. Verify email online using this tool, and you will have the opportunity to save «good» and «bad» contacts in separate files.

Best online program ever! We used desktop solutions in the past but the online has no restrictions on where we can check our lists! Read more »
Ed N.
Start using Atomic Verifier Online today for free!


Activate your account and get the opportunity to use our service for free.
Check your email addresses for validity.

Click the «download» button to download software and then click the «save file» button when prompted.