
B-75074EN/04 GENERAL 8.MAIL FUNCTION
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For connection with a provider, use the ISDN line.
Some related terms are described below briefly.
Dial-up connection
Dialing as required to make a line connection to the access point of an
Internet service provider. This mode of connection is the most popular
mode for one personal computer to use the Internet. In dial-up
connection, each time a connection is made, the provider assigns a
global IP address temporarily.
Mail server
Server for sending and receiving e-mail. In general, providers may have
a server for mail transmission (SMTP server) (corresponding to a mail
post) and a server for reception (POP server) (corresponding to a mail
box) separately or may have a server used for both purposes.
DNS (Domain Name System) server
Server that converts an IP address to a character string that can be easily
remembered by humans. For example, a DNS server relates the IP
address, 123.123.123.123, of a personal computer to the name, taro, of
the personal computer for management. Other personal computers can
query the DNS server to find that the IP address of the personal
computer named taro is 123.123.123.123. In general, providers have
two DNS servers. The first server is referred to as the primary DNS
server, and the second server is referred to as the secondary DNS server.