Managed Email Filtering

99% SPAM Filtered, Zero Hour Virus protection

Protection process

Viruses (100% removal with 0% false positives)

Managed E-mail Filtering core anti-virus solution comprises multiple best of breed identity based engines, which are critical in the detection of viruses. However, as mass outbreak viruses tend to replicate and distribute at such high speed, the time taken by identity based anti-virus vendors to capture, analyse and release tested updates to the anti-virus engines leaves organisations exposed to the threat of virus infection for a period of time. This window has been dubbed the ‘Zero Hour' syndrome. To meet this challenge, we employ Zero Hour and heuristic filters to seek out new, unknown viruses through additional mail scanning.

Spam (99% removal with 0.0003% false positives)

With spam levels regularly being measured at between 65 and 90 percent, we have invested heavily in technology to manage the sheer volume of unwanted email being delivered. Careful attention to connection management and integration of multiple best of breed filters has led to blocking the maximum quantities of spam with the lowest possible rate of false positives.

Pornographic Images

Many organisations recognise the distress that can be suffered by users who innocently open email to find distasteful images attached. Increasingly, employers recognise that they have a duty of care to minimise these incidents and consequently, Email Systems provides a filter specifically to address image analysis.

Encryption

The Managed Encryption Service provides an open standard encryption mechanism with no hardware or software purchase or maintenance required. Historically, reliable encryption has been unachievable for many organisations due to many interrelated issues – notably complexity, inoperable standards and, more recently, the threat of IPR leakage and malware infiltration through un-scannable encrypted channels. Managed Encryption Services are provided using Transport Layer Security (TLS), a transparent mechanism for encrypting data on a peer-to-peer basis, such as between messaging servers.

Dark Mail

Dark Mail is a phenomenon whereby message traffic is submitted by an attacker to numerous e-mail addresses in the hope of finding a valid target. A key trait of such an attack is that the majority of these e-mail addresses are non-existent. In all likelihood, these attacks are happening to most organisations on varying scales, however these nefarious activities tend to go un-detected, thus the term Dark Mail. If left unchecked, the attacks can scale to levels that cause extreme resource usage, message delays, black list outages and potential security breaches.

Email Systems' release 3.1.0 adds support to detect and manage these attacks. Three levels of control are provided that enable the filtering service to identify and detect dark mail recipients:

LDAP (Secure): Providing the ability for the filtering service to connect to an organisation's directory, e.g. Active Directory, and periodically synchronise valid recipient addresses for filtering
Pattern Matching: Ability to configure intelligent address matching filters to identify valid and invalid recipients
White list management: Capability to upload and merge e-mail address recipient information into the service.

Given that every organisation is different, the multiple levels of control allow organisations to pick the solutions that work best for them.

Uniquely, the service also protects organisations from the security threats associated with the divulgence of e-mail address through DHA (Directory Harvest Attacks), by transparently consuming e-mails within the service, rather than publicly rejecting invalid e-mails. Reporting is provided to indicate the level of Dark Mail filtering that is taking place. This includes the ability to report on key Dark Mail attacks, including DHA (Directory Harvest Attacks) and DSA (Dictionary Spam Attacks).