Keep your email lists up to date and remove email addresses which do not exist any longer. You just have to define the path of your email lists. As a result you receive a list with guaranteed valid email addresses, a list containg probably valid email addresses and a list with invalid email addresses. The EmailVerifier uses a proper proofing mechanism, because most of the mail servers have disabled the standard checking command. Further it exposes mail servers, which give the "OK" return value for every email address. Multithreading. Several email addresses will be checked simultaneously. Unlimitid size of lists. Email lists containing several million elements are possible. Very easy to use. Very fast. Graphical progress announcement. Project based. You can stop the product anytime you want and contine at a later time. Stops automatically when the InterNet connection is interrupted.