SAV-MailChecker Pro - Version 1.1 SAV-MailChecker Pro is used to enable automatic checking of unlimited number of e-mail accounts (services) that use POP3 protocol. Besides that, SAV-MailChecker Pro lets you remove unwanted messages from any mailbox. The program itself works on background being minimized (or hidden) to system TaskTray (the area of a TaskBar located near system clock).