mail.com is a web portal and web-based email service provider owned by the internet company 1&1 Mail & Media Inc., headquartered in Philadelphia, Pennsylvania, United States.

The anti-spam filter also helps detect junk mail and automatically sorts it into the spam folder.

[13] mail.com was originally formed in 1995 as Vanity Mail Services (corporate name Globecomm Inc.),[14] by Gerald Gorman, an investment banker at Donaldson, Lufkin & Jenrette, and Gary Millin, a Harvard Business School student at the time.

[17] It sold the mail.com domain and consumer email services division to Net2Phone,[20] changed its name to Easylink, and changed its business operations to focus on managed file transfer services in April 2001, after acquiring Swift Telecommunications, which in turn had spun off the "Easylink" business unit from AT&T.

[26] Parent company Mail.com Media Corporation (MMC) went on to acquire content websites such as Deadline Hollywood, Movieline and the Boy Genius Report.

In purchasing the mail.com brand, United Internet was aiming to leverage the unique character of the mail.com name and its many domains as part of its push for international expansion.

[28] At the time of the purchase CEO Jan Oetjen noted, "On the highly competitive international e-mail market, we perceive mail.com as a unique opportunity for differentiation which cannot be copied.

"[27] In the first quarter of 2016, mail.com launched a new support and contact portal, offering improved usability and FAQs for its customers.