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eMail Verifier | Frequently Asked Questions

eMail Verifier

Frequently Asked Questions

Compatible with MS Windows Compatible with MacOS


How to find out whether port 25 is blocked by your ISP?

This article explains how to find out whether your ISP is blocking port 25 on your account. Port 25 blocking prevents any 3rd party outgoing mail servers from being accessed while connected to your ISP network via Dialup, DSL or Cable. Many ISP's (Internet Service Providers) are blocking what is called "Port 25" which is the port used to send e-mail. They have chosen to do this to cut down on the amount of "SPAM" mail that is sent. All e-mail sent via the Internet is routed through the port 25, the channel used for communication between a mail client and a mail server. eMail Verifier will be unable to fully test e-mail addresses, eMail Verifier can check the syntax of the e-mail addresses and whether the domain they belong to exists but the last step, connecting to the address MX Exchanger, can't be performed.

Unfortunately, there is nothing we can do to change this. The port #25 is the standard for sending messages and the one eMail Verifier uses. The only solution is switching to another ISP. Smaller local ISP's usually do not block Port 25. Note that if your ISP is Comcast you can update your account to a Business Class account with full access to port 25. In the case you are connected through AT&T or Verizon, port 25 can be unblocked at the request.

You can easily check whether you are affected by port blocking by using eMail Verifier itself, just verify a single address, an address from anyone but you, do no use any of your own addresses. Then go to the eMail Verifier console panel and look at the text returned by the server. 

New paragraph If port 25 is not blocked you will get a successful response with code '220' like this:

Screenshot
New paragraph If port 25 is blocked you will get several connection retries followed by a timeout:

Screenshot



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Stan Busk Stan Busk
May 19, 2019



Recent questions from our eMail Verifier users
Bad Gmail addresses marked as valid New
Error with every email-adress (even my own, working one) New
How does eMail Verifier compares to online services? New
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

Generic questions
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How do I install Maxprog software on my computer?
macOS
MS Windows
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How can I change an application language?
macOS
MS Windows
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How to register the software I've just purchased?
macOS
MS Windows
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How can I recover the serials I have lost of products I purchased here?
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How can I recover my serial from a registered application?
macOS
MS Windows
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How can I find out the product name and version my serial unlocks?
macOS
MS Windows
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Where can I read your software License Agreement?
macOS
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The software doesn't start, runs very slowly or crashes often, how comes?
macOS
MS Windows
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Double-clicking on my files no longer opens them with the software, why?
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MS Windows
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, stanbusk.pairserver.com, usertools.com.
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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