Email Spam and Virus Filtering Solution
SpamOnion is an Unsolicited Commercial Email (UCE), or spam, filtering service. That is, it is a service designed to reduce the amount of spam that reaches the customer’s mailbox. The main concept of the SpamOnion service is to use a layered approach to detecting spam. Not one test, but 10 or more layers can be run on each incoming message to help determine if it a spam message or not. Indeed, there are many spam filtering products on the market today, but SpamOnion is one of the few that utilize a layered defense. This is a big advantage in today’s Internet.
SpamOnion is configurable on both the domain level and the user level. In this context domain level refers to spam filtering layers that are run on all email messages for a domain. Most of these layers are run while a message is attempting to be delivered via SMTP (Simple Mail Transport Protocol).
The administrator of the domain can turn on or off any of the domain level layers. There are also domain-wide whitelists and blacklists. Blacklists allow the domain administrator to reject messages from a particular sender email address, sender domain or sender IP address immediately. Whitelists allow the domain administrator to keep a layer turned on, but allow one or more friendly sender email addresses, sender domains or sender IPs to be automatically accepted.
The last layer of SpamOnion utilizes a piece of software known as DSPAM. This is a user level layer. If a message makes it through all of the previous layers, it is passed to DSPAM. If a message is classified as spam by DSPAM, it is placed in a quarantine box. The user is able to access the quarantine box via a web based interface (e.g. Internet Explorer, Mozilla Firefox) where he/she can delete actual spam messages. If DSPAM made a mistake, say classified a message as spam when it is not, the user can have DSPAM learn from its mistake. Or if DSPAM let a spam message get through, the user can correct DSPAM either via the web interface or by forwarding the spam message to a particular email address. In short, DSPAM learns the user’s email behavior and tunes itself to be a very effective filter for that user.
To utilize SpamOnion, the customer must only run their own mailserver or have an existing email service for their domain and have the ability to request a change for their domain DNS MX record settings. The customer’s mail server or mail service can exist almost anywhere and SpamOnion will continue to work. No software needs to be installed on the customer’s mail server or the end user’s desktop/laptop. SaNE will constantly update SpamOnion to fight the latest spammer threat.
SpamOnion uses a simple pricing model. The base cost is $2.50 per email address delivered to the customer’s mail server per month in groups of 5. There is a 10 address minimum ($10/month). A volume discount of $5 off is available for each block of 25 email addresses and another discount of $5 for each block of 100 email addresses. There is a $10 setup fee.