Anti-SpamDetect and block unwanted emails and avoid responding to spam

Spam Email - also known as junk email, involves nearly identical messages sent to numerous recipients by email. A common synonym for spam is unsolicited bulk email. The email is unsolicited and sent in bulk to hundreds of email addresses, frustrating and annoying email users.

Malware - viruses, worms, Trojan horses etc. designed to infiltrate or damage a computer system. Phishing - criminally fraudulent process of attempting to acquire sensitive information such as usernames, passwords and financial information (credit card details, account numbers) by masquerading as a trustworthy entity in an electronic communication.

Spam accounts for 80% of all mail traffic during an average week and 85-90% over weekends. Approximately 5 in 120 email messages contain a virus. A site processing 50,000 messages per day wastes time and resources on around 45,000 spam and virus messages!

According to an online tracking system that monitored emails globally over a recent 12-month period, 86 percent of emails were spam.

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Most of the spam scanning is done with the help of:

• Spam Assassin
• DNS blacklists
• Over 850 heuristic rules
• Bayesian probability system
• Distributed network-based checks such as Razor, DCC, Pyzor which track the frequency of messages around the world to identify spam
• Sender and recipient header checks to reject bogus or spoofed mail prior to delivery

Suspicious messages are tagged and quarantined for 30 days on a server. Messages are stripped to plain text and encapsulation - extremely effective against the rising tide of pornographic spam.

Yes, We Do.

All emails classified as spam are stored in a quarantine section on the server for 60 days. An administrator has rights to release these if necessary. All data is stored in a SQL database for ease of reporting and statistical analysis.

Detailed reports showing the following:

• Email usage
• Viruses blocked by the system
• Spam rules used to block spam emails
• Top senders
• Top recipients

Sentinal Spam reports are linked to your email account and can be viewed at any time using a secure username and password. Our support team are also available to assist. They are always eager to help you through any situation that does not make sense. Try us out and speak with in house support agents at any time.

Virus Scanning and Handling

• Our Spam services scans all e-mail passing through it for viruses using any combination of the supported anti-virus engines
• Attachments containing viruses or other security problems are removed
• All safe content is delivered untouched

Attachment Filenames & Contents

• Allows/denies attachments based on filename and file content, providing implementation of any email security policy
• Easily used to block attachments which are common ways of disguising viruses, e.g. ReadMe.doc.exe

HTML-based Attacks

• Scans for common signs of attack such as <IFrame> and <Script> HTML tags. Both have been used many times to exploit vulnerabilities in Outlook (& Express) and Internet Explorer
• Dangerous HTML content can be stripped

• Removes and/or highlights potential Phishing fraud
• Denial of Service attacks such as the “Zip of Death” and DNS blocks
• Looks for, and will optionally ban messages with “external bodies” and “partial” or fragmented messages
• Attempts to scan these would open up system to Denial of Service attacks
• Quietly fixes Eudora/Cyrus IMAP incompatibilities

All emails classified as spam are stored in a quarantine section on the server for 60 days. An administrator has rights to release these if necessary. All data is stored in a SQL database for ease of reporting and statistical analysis.