How will CentMail work with mailing lists (listservs)?
Mailing lists traditionally pose difficulties for economic approaches to reducing spam, as a sender’s message to the mailing list address is redirected to the (potentially large) set of subscribers. While CentMail encounters some difficulty in dealing with mailing lists, a simple solution exists via whitelists. Although one could ask that either the original sender or the operator of the mailing list incur a relatively large fee to cover the number of subscribed users, we instead recommend that users whitelist relevant mailing lists to deal with this issue. Recent work on improving the management and useability of whitelists [1] has confirmed that this is an effective strategy. • For a message with $1 postage sent to millions of people, the first 100 CentMail users will receive it with no indication from CentMail that it’s spam. Has CentMail failed these initial recipients? Not at all. CentMail has correctly informed those 100 recipients that they were one of at most 100 CentMail users
