Advanced Maillist Verify (AMV) is a program that verifies the validity of e-mail addresses in databases, address books and mailing lists. That’s not only a standalone program, but can be also easily integrated into existing systems using open COM/ActiveX and CGI/ISAPI interfaces.
The package includes detailed documentation and examples (for most major programming languages) for integrating Advanced Maillist Verify into Internet/Intranet servers based on Active Server Pages technology from Microsoft and ColdFusion from Allaire.
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The program works on the same algorithm as ISP mail systems do. Mail servers addresses for specified address are extracted from DNS. The program tries to connect with found SMTP-servers and simulates the sending of message. It does not come to the message sending — AMV disconnect as soon as mail server informs does this address exist or not. AMV can find about 90% of dead addresses — some mail systems receive all messages and only then see their addresses and if the address is dead send the message back with remark about it. Works with Socks5 proxy (to use in LAN).
The program supports all popular file formats — from simple mailing lists to The Bat! and Windows address books, and not just shows non-existing addresses, but also able to remove them from source lists and create “exclusion” lists. ODBC SQL support is there, allowing to work with DBMS like MS SQL, Oracle, MySQL, MS Access and others, and even with Microsoft Excel.
Advanced Maillist Verify can save time and money for businesses who send newsletters to their clients, nonprofits who send bulletins to their members, or any person or business that needs to maintain a clean e-mail contact list.
Also, take a look at High Speed Verifier (HSV) if you wish to verify mailing lists with millions of email addresses. HSV is offered as a solution for quick removal of garbage from huge lists. It perform the syntax, zone and DNS check of email address, and for purely technical reasons, its operating rate is 10..15 times greater than that of AMV with relatively small lists, and with lists containing millions of addresses the difference in operating rate might be up to thousands of times.