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SPAM filtering

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SPAM filtering

The costs of spam to business is continually increasing as spam levels grow. Employee productivity is negatively affected as users trawl through their inboxes sorting clean email from spam. Network security can be highly compromised by viruses, phishing emails and general junk sent by email. Network bandwidth is increasingly being taken up by huge amount of junk email. Spamming methods are becoming more and more sophisticated, increasing spam levels on an almost daily basis. The need for effective and efficient anti-spam techniques is as great as ever.

iFilter from Route 2 can help your organisation fight spam. Our service works by adding a secure layer to your email delivery. Emails sent to your users are routed through to our servers where we filter the spam, virus and phishing emails. Clean email is then sent on to your network. Many Anti-SPAM solutions also require you to wade through a quarantine area - defeating the purpose of a SPAM filter - iFilter has no quarantine area.

Why use iFilter to clean your email?

Over 99 % spam detection rate
Less than 1:1,000,000 false positive rate
Low per user cost
No hardware or software to setup
No capital outlay
No administration
Complete security & confidentiality - emails are not stored on our servers

How We Block Spam

We utilise a variety of techniques to ensure that spam and viruses are filtered out and only legitimate email is delivered. Tests are carried out at SMTP connect time before we have received an email and also when we process the email as it reaches our servers.

Email Filtering - SMTP Connect Time

When an email is sent from a mail server, a connection is established between the sending mail server and the recipient (iFilter) mail server. As this connection is made, we test information gathered from the sending server according to specific rules. These tests include:
Invalid sender information - ensuring the sending server follows correct protocols for sending email
Non-authentic server information - checking that the sending server is who it claims to be
Blacklists - checking sender IP address against known spam blacklists
Email Filtering - Content Analysis

Once we have accepted the email, further tests are carried out. It is at this stage that the body of the email can be analysed. Tests included at this point are:
Content-matching rules - analysing email content for patterns of spam and phishing
URL blacklists - checking URL's in emails against databases of known websites containing malicious applications
Anti-virus scanning - our anti-virus signatures are updated every 15 minutes to ensure we are prepared for the latest virus outbreaks
When an email has been has been recognised as clean it is sent onto the customer's mail server.

Email Backup

iFilter uses dedicated mail servers in Ireland and continental Europe for maximal redundancy and bandwidth. Once a customer is setup on the service, email delivery can take place through anyone of our servers in different data centres. This ensures that your email service will not be affected in the event of one of our servers or data centres going offline.

In the event of your mail server going down, we will queue your email for delivery until your server is back online. If you have redundancy built into your own network, we can ensure delivery to a secondary mail server in the event of your primary mail server going down.

Telephone: 01 4019420  •  Fax: 01 4019079  •  Email:
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