Omniquad Mailwall Enterprise

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Introduction Examples of E-mail Threats Key Features in Mailwall

Introduction

Computer networks are no longer defined by their physical boundaries. The communications revolution has delivered a powerful and indispensable business tool: E-mail.

Although e-mail has increased the speed of communications and improved productivity, left unguarded, your e-mail gateway is now a potentially damaging route for viruses (such as the crippling Melissa virus) unauthorised access and overwhelming traffic loads - all of which can compromise the integrity of your network.

Organisations of all sizes need to anticipate and protect against e-mail content threats by means of enforcing coherent and systematic content security polices. Designed to the cornerstone of your organisation's good security practice, Mailwall threat management software identifies and eliminates all incoming and outgoing content based threats, delivering effective content security - when and where needed. Employed as a fully integrated component of your existing Internet messaging protocols, Mailwall operates as a stand alone system or interacts with Lotus, Exchange or any other SMTP mail server. Mailwall has been designed to be visually managed with an Explorer-style graphical interface. This sophisticated software also allows for different policies, rules and authentication mechanisms to be applied to ingoing/outgoing e-mail traffic, domains, groups or individual users. Enterprise wide implementation Now your whole organisation can now benefit from one e-mail security mechanism, whether the users are on one major site, several smaller sites, on the road or working from home.

Examples of e-mail threats

examples of e-mail based threats that can affect your network include:

Virus infection

E-mail is one of the most popular channels for virus distribution. It is paramount that appropriate detection mechanisms are deployed. Both macro and recursively embedded viruses, such as the devastating Melissa virus which lie in wait in compressed attachments and document based files, can cause irreparable damage to networks.

Unauthorised transfers & offensive content

Some disillusioned and disgruntled employees possess the ability to breach security and leak information at the click of a mouse. E-mail has inadvertently allowed those intent on misuse the opportunity to export a limitless amount of confidential and valuable information, instantly and in many cases without detection.

Breaches of confidentiality

E-mail is potentially an uncontrollable route for the sending out of both libelous and offensive material (such as profanity and adult content), as well as an avenue to introducing malicious code. All threats possess the potential to reduce productivity by means of tying up valuable resources, affecting overall organizational performance and productivity.

Junk e-mail

Junk e-mail (SPAM) has become an increasingly time consuming aspect of our working day. This is not just an inconvenience, it can also take up valuable network bandwidth and server capacity, depleting valuable resources. 

Key features in Mailwall

Anti-virus protection management

• Mailwall incorporates multiple virus detection engines from most of the word’s anti-virus leading vendors.
• Mailwall will utilise your existing compatible anti-virus product, enabling you to minimise costs.
• Viruses can be automatically removed from message attachments or the whole message can be quarantined or rejected.
• Performs concurrent passes on message attachments with more than one virus-scanner, delivering the best possible virus protection available.
  

Attachment control

• Quarantines or rejects user-defined file types such as movie clips, pictures or executable programs - sends the relevant reply to the sender if required.
• Limits the size of messages and allows you to specify individual sizes for various file types. Messages over a certain size may be rejected or automatically delayed for off-peak delivery to preserve your bandwidth.
• Full bandwith reporting ensures that you always have a total overview.
• Adds/removes file attachments

Content security

• Lexical analysis of message subject, text body and within attachments allows you to detect messages with questionable, abusive or illicit content.
• A separate response action may be set for different situations and scenarios.
• Detects unathorised transmission of encrypted data
• Detects password protected ZIP files
  

Junk e-mail protection (SPAM)

• Deletes junk e-mail before it consumes your valuable bandwidth, server resources and users time.
  

Confidentiality protection

• Prevents confidential information related to clients, competitors, passwords etc. from being sent by e-mail without authorisation. All suspected messages can be temporarily quarantined for authorised approval.
  

Legal disclaimers

• The insertion of legal disclaimers protects your organisation from possible litigation related to the use of e-mail by one of your users.
  

Quarantine facility

• All suspicious and unapproved incoming/outgoing e-mail messages can be scanned and quarantined, for inspection by the Network Administrator.
  

Automatic Archiving

• Archives all/specific messages for future use as a valuable reference resource.

At a glance

• Works as stand-alone with Lotus, Exchange Server or any SMTP-compatible mail server.
• Can be positioned on a network without a firewall, at either side of the firewall or in the DMZ.
• 32-bit executable modules running on Windows95/98/NT (running as a service on NT).
• Multi-threading module increases or decreases system load depending on the traffic to be processed.
• Full support for RAS.