21.   This server checks the address on the message and forwards it to the mail server of your intended recipient.

22.   With that kind of exponential growth, a few generations could produce massive numbers of e-mails and overload a mail server.

23.   Some network administrators consider e-mail loss a necessary evil to prevent spam from overwhelming mail servers and clogging the Internet.

24.   The mail server at the Small Business Development Center in Albany also was shut down.

25.   However domestic mail servers face difficulties controlling spam as it is mostly international deliveries which are routed through largely unregulated Chinese servers.

26.   The Internet company is following in the footsteps of other major domestic mail servers such as Sina.com and Netease, which began charging their users last year.