High Speed Verifier 3.6.454

High Speed Verifier is a high-speed program for checking email addresses for existence, can check up to several thousand addresses per second. The program copes perfectly with mailing lists of several tens of millions of addresses, and moreover, it is on lists of this volume that the peak performance of the program is achieved.

High Speed Verifier detects about 20-30% of non-existent addresses in the mailing list, with theoretically possible detection by software methods of up to 60-70% of non-existent addresses. This figure seems relatively small, but in practice it can amount to about 10% of the volume of the list being checked. At the same time, the program provides an optimal check mode in terms of time and network traffic. A higher-quality check (which allows you to identify the remaining 40% of non-existent addresses) requires ten times more time and five times more network traffic per address, which makes a high-quality check not entirely appropriate for large-volume lists.