Generators of unwanted and malicious email use constantly evolving techniques to penetrate companies' existing defences, and these days email threats have expanded beyond simple nuisance spam.
Our solution combines best-of-breed conventional techniques, with Cisco IronPort® breakthrough SenderBase reputation filters, context-sensitive detection technology and rapid-response Sophos™ anti-virus technology. This eliminates the broadest range of known and emerging email threats. All of your incoming email will be passed through these servers to be filtered, then sent through to your mail server.
The first filtering stage is a black list of known spammers, at which point definite spam is dropped - often, this is all that is provided with simpler anti-spam offerings.
The second filtering stage is provided by our high availability IronPort® platform, and delivers real value to our solution. This is the same platform that filters spam and viruses for around 200,000 Internode email addresses. It's big - on a typical day, this platform processes about 10 million messages - and identifies almost 80% as spam!
Our specific implementation includes:
Our system classifies spam into two categories - 'Suspect' is likely to be spam (but you may wish to further check); and otherwise it's extremely confident that it's just 'Spam'.
You can choose the actions of our filtering technology - on a per email address if you wish - for the following combinations of 'tagging' or 'dropping' spam, suspected spam and virus infected email:
The available policies for processing your incoming email are:
|Highest Setting||Drop Virus + Drop Suspect Spam + Drop Spam|
|Medium Setting||Tag Suspect : Drop Virus + Tag Suspect Spam + Drop Spam|
|Default Setting||Drop Virus + Tag Suspect Spam + Tag Spam|
|Lowest Setting||Tag Virus + Tag Suspect Spam + Tag Spam|
|Off||No filtering applied*|
*Note that even with the service set to 'Off', some spam will still be deleted. This is because of a pre-processing activity that occurs prior to the IronPorts, washing incoming mail against a blackest of blacklists of known spammers.
The most common choice - and the default - is to 'drop' virus and spam, but simply 'tag' suspect spam. This suspect spam is sent to your email server with a tag indicating that it may be spam, for you to deal with as you see fit - such as manual review, whitelist processing, user spam folders, etc.
In order to utilise Internode's Business Mail Filtering service, an Email Address Fileis required on your email server. This lists all of your valid email addresses, and (optionally) the specific filtering policy to be applied to each one. Once an hour this is securely uploaded to our filtering cluster - that is, you simply make adds/moves/changes to this file, and they automatically take effect within an hour.
A script is available for Unix email servers to automatically generate this file. Alternatively, you can manually create and maintain the file using a text editor such as Notepad - it's a pretty simple text file.
Other technical aspects of the service include:
Your outgoing emails are not processed or affected in any way by the Business Mail Filter service.
With any spam filtering, there is a small possibility of 'false positives'. Every care is taken, and we believe that our approach delivers the most accurate and effective outcome possible - nevertheless Internode will accept no responsibility for losses arising from the incorrect forwarding, tagging or dropping of email messages.
Or to put it in friendly legal terms: "Under no circumstances shall Internode Pty Ltd or any of its employees, business partners, or contractors be held liable for any form of damage, whether direct, special, indirect, or consequential damage that may arise in connection with use of the Business Mail Filter Service, including but not restricted to wrongful classification, delay, or loss of messages."
To obtain your Internode Business Mail Filter service, simply contact our Sales team to request an application form.
If you have any questions about our Business Mail Filter
contact Internode Business Sales, or call 13 NODE (13 66 33)