Master Directory Email Spider - Version 2.56 Master Directory Email Spider is a Search Engine Directory targeted email extractor software. It can build your own business mailing lists in 5 minutes. It was designed to collect email addresses matching specified Search Engine Directory. Just select your directory, it will search the directory and extract fresh email addresses in it. It supports search engines include most of the major search engines such as Google, Yahoo, Bing etc. It can search up to 18000 emails per hour. It supports to export search result to Text, CSV, TSV and Excel files.