Sentinal Anti-Spam

Description Cost
Sentinal Anti-Spam R15.00 Monthly per Mailbox
Mail Spooling R285.00 Monthly

Sentinal Anti-Spam Solution?

ITNT Sentinal Anti-Spam is designed to protect your organisation from emails containing spam, malware (viruses) and phishing. These emails can flood organisations’ networks and cause major disruptions, in addition to the irritation of receiving hundreds of emails that have nothing to do with your day-to-day business dealings. Our anti-spam solution will save your organisation a considerable amount of bandwidth by ensuring that only legitimate email is delivered. All Spam is quarantined and blocked from being delivered to your corporate networks.

Sentinal Anti-Spam includes the following:

  • A virus engine that updates hourly.
  • A dynamic anti-spam engine that learns from emails being delivered by the system for spam classification.
  • Every email and its attachmentsis checked for spam and viruses.
  • A quarantine area that holds all blacklisted or virus related email. All emails are stored in the quarantine area for 30 days.
  • An email release mechanism to allow users to release quarantined emails.

  • Detailed reports showing the following:
  • Email usage
  • Viruses blocked by the system
  • Spam rules used to block spam emails
  • Top senders
  • Top recipients

Other Attacks handled

  • 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.

Want more information? Read our FAQs page.

ITNT Mail Spooling

ITNT offers a mail spooling service for hosts that do not have a full time connection or as a backup email solution in the event of your mail exchange server going offline. Emails coming to will be queued in our mail server. If your mail server has an intermittent Internet connection then the mail server in your corporate LAN connects to our server to de-queue the mails. Common PC LAN GroupWare Applications like Novell GroupWise and Microsoft Exchange support ETRN for mail retrieval. The ETRN command is an extended Simple Mail Transfer Protocol (SMTP) e-mail de-queuing command that is issued to an e-mail host for Internet e-mail retrieval. Otherwise, our server will automatically send all queued mail to your server when it becomes available.

To ensure that your e-mail is free from viruses and spam, we protect your mailbox with anti-spam and anti-virus software. You can therefore receive e-mails without having to worry about downloading a computer virus or have your staff members receiving unwanted spam.


Learn more about greylisting.


Learn more about phishing.