Taken by itself, bulk E-mail is not necessarily abuse of the electronic mail system. For example, there are legitimate mailing lists, some with hundreds or thousands of willing recipients. Routing information which is misleading or incorrect or which would tend to disguise the origin of the routed material. File Transfer Protocol. FTP is also the name of any of various computer programs that implement the file transfer protocol.
Customers can also retrieve files by FTP using a web browser.
Delivery of enough E-mail to an electronic mailbox to overload the mailbox or potentially overload the system that the mailbox is hosted on. All users of the network can post messages, and every user can read all messages distributed worldwide by the Usenet system, covering thousands of topics. Intentionally flooding a system's pipeline with ICMP EchoRequests. This can reduce the bandwidth available for legitimate use and, if severe enough, can bring a pipe down. A get-rich scheme in which you receive a message containing a list of names.