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Comparing Email Verifier to online solutions

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I wrote eMail Verifier and I have been using and developing the tool for years. As a developer and also a user I was very worried about deleting valid emails. So I created a system that only flags bad emails, I mean, when there is absolutely no doubts. If eMail Verifier is not 100% sure then the address is mark as 'Looks Good' or 'Looks Bad' and the user decides what to do. The software tries to clean the list its best but without taking any risk of deleting valid emails.

Yesterday, steveb-ci, an eMail Verifier customer posts a very interesting comment in our forums about eMail Verifier compared to online solutions. This is what it says:

I've been on a big test recently, comparing how well the various email cleaning services compare to each other.

I started with a list of 1500 emails that hadn't been used in several years. Email verifier reduced the list to 1275 addresses marked as OK, or looks OK.

I then ran the list of 1500 through some of the most popular online cleaning solutions, the most notable of which was Never Bounce, which came highly recommended.

Never Bounce reduced the list to 900. Interestingly Email Verifier tagged 350 emails as "looks OK", so I summised Never Bounced played it safe and even if the address "looked OK", it tagged it as bad.

The other services I tried ranged from 300-850 good emails.

I took the results of Email Verifier, 1275 emails and sent them a test email. 80 bounced, 19 hard bounces.

So in short, if I'd gone with the list from Never Bounce I'd have lost over 300 good emails. If I'd have gone with any of the other lists I'd have lost a lot more. Only Email Verifier got very very close to the correct number of good addresses.

The other thing to note is that only Email Verifier allowed me to export various different lists: Good. Looks like good, bad, or a mixture. All the online services would allow me to export was the good emails or all the emails.

It's been very time consuming and pretty expensive to run all these tests, but it's been very worthwhile, I can continue to use Email Verifier safe in the knowledge it delivers the best results.

Thought it worth sharing.


eMail Verifier actually checks every address from a given mailing list, using the same algorithm as ISP mail systems do, allowing you to determine up to 70-80% of "dead" mail addresses. Yes, up to 70-80%, there is no way to be sure at 100% and it is what the products page says by the way. eMail Verifier tries to connect to each mail server and simulates the sending of a message. Then it scans the server response very carefully. The algorithm used to clarify the responses is the result of years of testings.

Have a great week-end.


Stan Busk - Software Engineer
at www.maxprog.com






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Stan Busk Stan Busk
January 14, 2019



Recent questions from our eMail Verifier users
  Not able to verify anything New Screenshot
  Bad Gmail addresses marked as valid Update Screenshot
  Error with every email-adress (even my own, working one) Update
  How does eMail Verifier compares to online services? Update
  The program does not verify any address
  eMail Verifier is timing out
  Bad e-mail addresses are sometimes marked as valid
  Not working Error #22
  MX record not found
  No puedo registrar mi número de Licencia.
  eMail Verifier speed and capacity
  Using eMail Bounce Handler with eMail Verifier
  eMail Verifier is only able to test Gmail addresses
  Email Verifier vs online verifers
  Problemas de verificación
  eMail Verifier is Hanging up
  Lost serial
  Freezes after pref change
  Won't verify lists
  It takes forever to import my email list into the software
  Stops processing in the middle of the list
  Problems with importing tab delimited files.
  Problème de connexion

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Stan Busk If you want to make the most of the software that you have acquired at Maxprog, do not miss the Stan's Blog. It is a library of Tutorials and Tips covering specific features and tipical problems you may have when using our tools. This page is updated regularly depending on the topics discussed in our public forums and issues reported thru our HelpDesk. If you are interested on what we are currently working on (or want to participate in beta testings) don't miss the Stan's Logbook.
For years, MAX Programming has provided companies around the globe with sophisticated and innovative solutions. Our commitment to quality is not only evident in our products, but also in our people. It is our mission in Professional Support Services to ensure that our products perform to the fullest of their ability in order to meet the business objectives of our customers. We provide the tools and information required for improved productivity. To accomplish this, we offer an array of services including: Technical Support, Education Services and Consulting Services.

Maxprog is part of an internet site network made of desktoolset.com, emaildesignstudio.com, familycash.com, icash.promo, maxbulkmailer.com, maxprog.com, maxprog.net, maxprog.org, maxprog.us, myrecipients.com, newslettercomposer.com, sharedcontents.com, stanbusk.com, usertools.com.
Maintain clean mailing lists checking the validity of recipient's e-mails addresses. eMail Verifier can save time and money for businesses who send newsletters to their clients, nonprofit organizations who send bulletins to their members, or any person or business that needs to maintain a clean e-mail contact list.

eMail Verifier is your powerful solution for the standard "message delivery error." Email Verifier verifies every e-mail address from a given mailing list, allowing you to determine 80-90% of "dead" email addresses.

eMail Verifier works on the same algorithm as ISP mail systems do. Addresses for e-mail are extracted from a Domain Naming Server (DNS) and eMail Verifier tries to connect with SMTP-servers and simulates the sending of a message.

It does not send the message though - eMail Verifier disconnects as soon as the mail server informs the program whether the address exists or not. Email Verifier is a very effective piece of software that can verify over 10 e-mails per second .

It can verify single e-mails or huge lists. (eMail Verifier is multithreaded, providing high speed verifying).

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