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Email Verifier Overview

Atomic Mail Verifier is a unique program that checks email addresses for validity.



Unlike other email verification software, our email verifier uses three levels of verification to ensure that you will never lose any valid email address.

After you load your mailing list or paste in email addresses for validation, our bulk email verifier begins to verify the addresses. All addresses are checked in multithread mode to speed up the entire process.

How Atomic Email Verifier works

The three steps of verification include:

  1. Email address syntax check. The verifer marks invalid addresses such as bill#yahoo.com, kate!@$aol,com, etc.
  2. Availability of the domain of email address. Our email verifier software checks the availability of the domain: i. e., it marks valid addresses like bill@yahoo.com or kate@hotmail.com, and marks nonexistent domains as invalid.
  3. Existence of email addresses on mail servers. The email address verifier tries to establish an SMTP connection with the mail server and tests the addresses. Please make sure Port 25 is open.

How to setup Atomic Email Verifier

To verify each email address in the list, you may complete all of these steps, or only some of them.

For example, if you have a huge mailing list with hundreds of thousands of addresses, then you only need to run the first two steps, because checking each address on its mail server takes time. This type of mailing list verification usually removes one-third of all "bad" addresses.

If your mailing list has several thousand email addresses, then you may complete all the steps of verification. Using all three steps guarantees the removal of most nonexistent or invalid addresses.

Atomic Email Verifier is fully integrated with other Atomic e-marketing tools. This means you can collect email addresses using our email extractors (like Atomic Email Hunter), transfer gathered emails to AMV to remove obsolete addresses, and then use our bulk emailer, Atomic Mail Sender , to send mass mail. Optionally,, Atomic Subscription Manager can automatically manage your mailing list and track all subscriptions and unsubscriptions.

Atomic Email Verifier Screenshots

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Atomic Mail Verifier - Verifying email lists

Atomic Mail Verifier - Export wizard

Atomic Mail Verifier - Email list verification in progress

Atomic Mail Verifier - Main Settings

Our clients about Atomic Mail Verifier:

I used trial version. I checked with mixing few bad emails. The success rate is awesome. It's about 99%. Highly recommended

Bahar Hossain
MB production

I've tried Atomic mail Verifier and i'm very satisfied for the quality and the simplicity of that product.

Paolo Pellecchia


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