SORBS (Spam and Open Relay Blocking System) is a list of e-mail servers suspected of sending or relaying spam (a DNS blacklist). It has been augmented with complementary lists that include various other classes of hosts, allowing for customized email rejection by its users.
Read more about Spam And Open Relay Blocking System: History, DUHL
Famous quotes containing the words open, blocking and/or system:
“Who shall forbid a wise skepticism, seeing that there is no practical question on which any thing more than an approximate solution can be had? Is not marriage an open question, when it is alleged, from the beginning of the world, that such as are in the institution wish to get out, and such as are out wish to get in?”
—Ralph Waldo Emerson (1803–1882)
“Cassoulet, that best of bean feasts, is everyday fare for a peasant but ambrosia for a gastronome, though its ideal consumer is a 300-pound blocking back who has been splitting firewood nonstop for the last twelve hours on a subzero day in Manitoba.”
—Julia Child (b. 1912)
“... in America ... children are instructed in the virtues of the system they live under, as though history had achieved a happy ending in American civics.”
—Mary McCarthy (1912–1989)