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ADVANCED E-MAILUsing Mailing Lists and

Exploring Wireless E-Mail Options

New Perspectives on

THE INTERNET

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Objectives

• Learn about different types of mailing lists

• Join and leave a mailing list

• Post messages to a mailing list

• Locate mailing lists

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Objectives

• Retrieve and read a mailing list’s archived files

• Explore the history of the wireless Internet

• Learn about different wireless networks

• Locate products that provide wireless e-mail delivery

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What is a Mailing List?

• A popular way of sharing information is to join, or subscribe to, a mailing list.

• A mailing list is a list of names and e-mail addresses for a group of people who share a common interest in a subject or topic and exchange information by subscribing to the list.

• Information is sent to the mailing list through e-mail by posting a message to the list.

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What is a Mailing List?

• Different types of e-mail software – LISTSERV, ListProc, and Majordomo.

• A list server runs the e-mail list software.

• In commercial mailing lists, advertisers send promotional materials for specific products to customers based on their expressed preferences.

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What is a Mailing List?

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What is a Mailing List?

• A list moderator moderates a mailing list to ensure that the list always receives and sends appropriate and relevant information to its members.

• When an individual does not moderate the list and postings are sent to list members automatically, the list is an unmoderated list.

• A closed list is one in which membership is not automatic.

• A list administrator oversees one or more mailing lists and can either reject or accept a request to become a list member.

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What is a Mailing List?

• Usenet (User’s News Network) is an information network to which people can post and read messages and opinions.

• Usenet newsgroups group postings by topic.

• Use a newsreader program to access a newsgroup.

• You must retrieve information from a newsgroup, it is not sent automatically.

• When a message is sent to a newsgroup, anyone with Internet access and a newsreader can read it.

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What is a Mailing List?

• Potential problems of mailing lists:

– Mail volume may be more than you can read.

– Repetition of questions that have been previously posted on the mailing list.

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Subscribing to a Mailing List

• Message digests are several postings grouped in a single e-mail message to help reduce the number of messages received.

• Messages are e-mail messages that express ideas or ask questions that each member of the mailing list receives.

• Commands request the list server to take a prescribed action.

• Commands are not forwarded to other list members.

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Subscribing to a Mailing List

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Subscribing to a Mailing List

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Subscribing to a Mailing List

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Posting a Message to a Mailing List

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Reading a Mailing List’s Archived Files

• Many list servers file every message received by the list in an archive.

• Send an index command to the mailing list’s administrative address to get a list of available archive files.

• Use the get command to select the files you would like to receive.

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Identifying a Mailing List’s Members

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Leaving a Mailing List

• You can leave a mailing list, or drop the mailing list, or unsubscribe.

• Send an unsubscribe message to the list’s administrative address, include the unsubscribe or signoff command followed by the list’s name.

• Check the mailing list’s confirmation message to determine the proper command to use.

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Searching for Existing Mailing Lists

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Searching for Existing Mailing Lists

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Searching for Existing Mailing Lists

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Wireless Technologies

• As new technologies emerge, wireless Internet devices and services may increase to well over 125 million users by 2004 or 2005 in North America alone.

• Second-generation wireless systems, or 2G wireless, support voice and text transmission over the same connection.

• Short Message Service (SMS) – allows text messages of up to 160 characters over a 2G wireless network.

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Wireless Technologies

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Wireless Technologies

Figure 7-12

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Wireless Local Area Networking

• Wi-Fi or wireless fidelity – specifies the interface between a wireless client and a base station or between two wireless clients.

• Wireless local area network or WLAN – a network in which devices use high frequency radio waves instead of wires to communicate.

• Wi-Fi also known as 802.11b.

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Wireless Local Area Networking

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Wireless Local Area Networking

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Personal Area Networking

• Personal area networking – wireless network used to connect personal devices to each other.

• There are two major types of personal area networks:– Infrared

– Bluetooth

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Personal Area Networking

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Personal Area Networking

Figure 7-16

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Personal Area Networking

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Wireless Wide Area Networking

• Wireless wide area networking (WWAN) makes it possible to access e-mail and the Internet from anywhere within boundaries of the wireless network to which it is connected.

• The wireless WAN of the future will use wireless connections and technologies, such as GPRS, to connect networks to each other along a spectrum.

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Wireless Wide Area Networking

Figure 7-18

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Wireless Wide Area Networking

Figure 7-19

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Wireless E-Mail

• The connection between a wireless phone and PDA can give users ability to access the Internet and e-mail remotely.

• New ways of transmitting data and new hardware will make data easier to read and use.

• One new technology is a mini, collapsible keyboard.

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7Wireless E-Mail

Figure 7-20

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Figure 7-21

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Wireless E-Mail

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Wireless E-Mail

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Wireless E-Mail

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Wireless E-Mail

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Wireless E-Mail