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Beijing Express Maillist Verify 1.0 is intended for e-mail addresses and mail lists verifying. The main task is to determine which of addresses in the mail list are dead. The program is oriented, basically, on programmers which have their own mail lists to inform their users about new versions of their programs.
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 ?? EMV disconnect as soon as mail server informs does this address exist or not. EMV 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.
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