The Outbound Index, developed by Server Authority, is based on the premise that spammers tend to hide and move, whereas legitimate businesses tend to be stable and clearly identifiable. The index uses objective data about the source rather than subjective analysis of words in the content of the e-mail message. For example, said April Lorenzen, president of both FullScaleCommerce.com and Server Authority, real estate companies send and receive legitimate messages containing the word "mortgage," which could be interpreted as spam by a content filter.
FullScaleCommerce.com said that the Mail Cruncher service uses only Outbound Index ratings to sort e-mail. Messages with a high rating go immediately to the subscriber's inbox; those with low ratings are held back. Once a day, Mail Cruncher sends the subscriber an e-mail with a sorted, color-coded list of suspicious e-mails.
Domains are grouped in this summary e-mail: all messages from the same domain appear together, so one decision can be made about all of them. The list is prioritized: messages from senders that the subscriber previously marked as wanted are presented on top, in one color; messages from new senders are next, in another color; and senders whose messages were previously deleted are at the end, in third color.
Subscribers can read the text of messages within the Mail Cruncher environment without triggering malware or displaying objectionable images -- and without the sender knowing that the e-mail was opened.
Most of the software used in the Outbound Index is open source, including Twisted Framework Python, Postgresql, Sendmail and Debian Linux.
Mail Cruncher is available immediately at $3 per mailbox. Quantity discounts are available.
