Anti-Spam Software

ALSO CALLED: Spam Filters, e-Mail Spam Software, e-Mail Spam Filtering, Email Spam Filtering, Spam Prevention Software, Spam Blocking Software, Antispam, Spam Filter Software, Anti-Spam Filters, Spam Filtering Software, Spam Blockers, Email Spam Software, Bayesian Filters, Anti-Spam
DEFINITION: A graylist (also spelled greylist) is a list of e-mail addresses or domain names a spam filter can use to identify suspected spam. If a message arrives from an address or domain on the list, it will be quarantined and then delivered to the subscriber only if the sender attempts to send the message again within a certain period of time. Once a sender has been recognized as legitimate, its address is  … 
Definition continues below.

ANTI-SPAM SOFTWARE DEFINITION (continued): …  removed from the list and future messages from that address can pass through the filter unhindered.The chief advantage of graylisting is the fact that it eliminates most spam while giving desired e-mail traffic a chance to get through. It requires no special configuration efforts on the part of the end user and places no additional burden on the resources of the end user's computer. However, unless a sender transmits its first message to a graylist user twice from the same e-mail address within the prescribed time, the filter will reject the message. Graylisting can also cause annoying delays … 
Anti-Spam Software definition sponsored by SearchExchange.com, powered by WhatIs.com an online computer dictionary