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RocketMail was one of the first major, free webmail services. The service was originally a product of Four11 Corporation. For a brief time, RocketMail battled with Hotmail for the number-one spot among free webmail services. Four11, including RocketMail, was acquired by Yahoo! in 1997. Yahoo! assimilated the RocketMail engine. Yahoo! Mail is essentially the old RocketMail Webmail system.
At the time of the transition, RocketMail users could either choose a Yahoo! ID, since they were not guaranteed the availability of their RocketMail ID on Yahoo!, or could use username.rm as their Yahoo! ID. Thus, they were able to keep their rocketmail.com address and receive the same services as all Yahoo! users.
On June 19, 2008, Yahoo started the RocketMail brand again by allowing new users to sign up for accounts under the rocketmail.com domain, which had not been possible since its acquisition of Four11 Corporation.
- ↑ http://www.iht.com/articles/ap/2008/06/19/business/NA-TEC-US-Yahoo-Mail.php Yahoo addresses narrowing e-mail options with addition of "ymail", "rocketmail" domains
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</tr> </table> 2. "Yahoo Mail hopes to lure users with 'ymail.com'"