Email security company IronPort Systems has launched a web reputation tool that checks not only email reputation but also the URL links within emails, reports DM News. Most email content filtering technology doesn't evaluate such links, according to the company. Using its SenderBase Network and constant scanning of the internet for newly created or modified URLs, IronPort develops a score for each URL, based in part on whether the domain has established a positive track record. More than 100,000 contributing organizations provide the SenderBase data, including eight of the 10 largest ISPs and Fortune 500 companies, according to the company.