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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


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?
macOS
MS Windows
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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
MS Windows
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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?
macOS
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.
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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