Send-Safe Email Verifier is a program designed to determine which of addresses in mail list are dead and which alive. The program works on the same algorithm as ISP mail systems do. Mail servers addresses for e-mail are extracted from DNS. Send-Safe Email Verifier tries to connect with found SMTP-servers and simulates the sending of message.
It does not come to the message sending - the program disconnect as soon as mail server informs does this address exist or not. Version 2.2.2 may include unspecified updates, enhancements, or bug fixes.