I require a contacts importer or address book grabber for most email providers, particularly the more popular ones like Hotmail, Gmail and Yahoo.
Once logged in, an additional requirement is required. It must have the ability to not only import address book, but also
1)crawl through the emails within with "specific text delimiter" (or regex) for searching purposes. Much like a "find" function in your browser except that it will output all in an array of string.
For e.g., if i input an email REGEX expression in the "search", it will output all emails addresses found in all the emails.