256 Chapter9·BringingItTogetherinaReviewPlatformandManagingtheReview t ip If a custodian involved in the discovery process happens to subscribe to automated e-mail lists, which sent multiple messages to him or her over a period that can span several years (years that could be relevant to the case), these messages--which can be considered as "spam" or not--may litter your result set, numbering in the thousands and contributing no value to the case. If these messages make it into the review platform and the review team manually sorts through them, it is possible that your company could spend a significant amount of review for useless data. Another option, through the use of ECAs, is to filter data for particular domain names (e.g., website.com) to eliminate that information early in the process. Not only will you save review time, but also you will store less ESI in your review application, potentially reducing monthly hosting fees. Per MetaLINCS, you should consider the following items for the control that ECA offers your team: It utilizes some of the most advanced technologies available to process the masses of ESI. It automates de-duplication and first-pass­culling capabilities to reduce data sets far greater