A hard bounce is the failed delivery of an e-mail due

to a permanent reason like a non-existent address

A soft bounce is an e-mail message that gets as far as

the recipients mail server but is bounced back

undelivered before it gets to the intended

recipient. A soft bounce might occur because the

recipient’s inbox is full.

Computer spam is defined as unsolicited

junk mail. It may be an advertisement for

a product sent to a mailing list or

newsgroup. This is unwanted among

email users.

Internet is an electronic communications network

that connects computer networks around he world.

Intranet is a private computer network with a

firewall that is accessible only by the organization's

members, employees, or others with

post office protocol, a protocol used to retrieve e-mail from a mail server

Phishing is the act of sending an e-mail to a user falsely claiming to be an established legitimate business in an

attempt to scam the user into surrendering private information that will be used for identity theft.

The e-mail directs the user to visit a Web site where they are

asked to update personal information, such as passwords and credit card, social security, and bank account.

The web site, however, is bogus and set up only to steal the user’s information.

Encryption- scrambling of information for

security purposes to be sent across the Internet

Decryption- descrambling of information

for security purposes that has been sent across the Internet

Netiquette – guidelines for posting

messages to online services, and Internet newsgroups.

Netiquette covers not only rules to

maintain civility in discussions, but also

special guidelines unique to the electronic nature of forum messages.

A Router is a device that forwards data

packets along networks. A router is

connected to at least two networks.

Routers are located at gateways, the

places where two or more networks connect.