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Bad e-mail addresses are sometimes marked as valid

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Question: We tested Verifier on a set of dummy emails, one that we made up knowing they are fake, using both the Yahoo domain and our own proprietary domains for the fake emails. Only one out of five bad email addresses was flagged as bad and the others were confirmed as valid, looks valid, timeout and "scanning". Your software should have identified all five as bad. We ran another similar test on a larger list of 10 emails, half were true email and half were fake. The software flagged ALL of them as valid.

Answer: For some addresses, such as AOL, Yahoo, and other non-SMTP mail, you can't verify whether the address is good or not. You won't know definitively until some bounce. The mail server won't cooperate and as a result addresses will be marked as valid. In fact, a few ISP's mail servers are configured in a way they prevent anybody to find out if an e-mail address is good or not sometimes to protect their customer e-mail addresses from harvester tools. You can get more information about this here: Bad e-mail addresses are sometimes marked as valid.

Answered by Stan Busk on
Monday 20th of August 2018

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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.

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eMail Verifier est un logiciel qui permet de vérifier les adresses e-mail d'une liste et afin de détecter celles qui ne sont pas bonnes ou sont obsolètes. Si vous êtes sur le point d'envoyer un message à une liste de distribution, eMail Verifier peut vous permettre d'économiser beaucoup de temps et d'argent.

eMail Verifier est idéal pour l'entreprise qui envoie des offres régulièrement à ses clients, ou bien l'organisation non lucrative qui envoie des bulletins électroniques à ses membres ou simplement si vous avez besoin de maintenir votre liste de contacts ou de clients libre d'adresses invalides ou obsolètes.

eMail Verifier est une solution très efficace qui permet de réduire radicalement le nombre de courriers rejetés et ainsi d'accélérer les envois.



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