Packets

A piece of a message transmitted over a packet-switching network.

Mailing List

Is a list of e-mail address identified by a single name.

Instant Messaging

Is a form of live text-based communication with two or more people.

e-mail Address

It identifies an e-mail box in which e-mail messages were sent from.

Electronic Mail (e-mail)

Is the transmissions of messages in a computer network.

Distribution List

Is a term sometimes used for a function of email clients where lists of email addresses are used to email everyone on the list at once.

Attachment

Is a file attached to an e-mail message.