QQ mailbox is an extended information launched by Tencent in 2002, aiming at providing users with safe, stable, fast and convenient e-mail service. Provide free and value-added email services to more than 654.38 billion email users. QQ mail service is backed by high-speed telecom backbone network, and has a unique independent overseas mail export link, which is not affected by domestic and foreign network bottlenecks and transmits messages globally. Adopt a highly fault-tolerant internal server architecture to ensure that any failure will not affect the use of users, log in to the mailbox stably anytime and anywhere, and send and receive emails unimpeded.
References:
Baidu encyclopedia -QQ mailbox