Internet UTM Firewall Appliances developed by Global Technology Associates, Inc, GTA include IPS, VPN, Virus Blocking, Spam Filtering and URL Filtering.
Unified Threat Management - Options | GTA, Inc.
Spam and Virus Filtering


Mail Sentinel®

Business success depends on electronic communications which rely on your network connections. Spam and computer virus attacks can cripple your network resulting in lost productivity, corrupted data, leaks of confidential data, and missed business opportunities due to lost or delayed email communications.

GTA's Mail Sentinel is a full-featured anti-spam and anti-virus solution allowing you to take back control of your email. Expand the capabilities of GTA's basic Mail Sentinel email features with the Mail Sentinel Anti-Virus feature and the commercial-grade subscription, Mail Sentinel Anti-Spam - powered by Mailshell Anti-Spam technology. Together Mail Sentinel's features fight these business nuisances by providing a level of defense at the perimeter with a gateway level solution. Integrated into the GB-OS, there is no need to purchase additional hardware or install software on desktop stations to activate the Mail Sentinel Anti-Virus feature or the Mail Sentinel Anti-Spam subscription based option.

  • Detects and blocks spam or virus in real time
  • Customize black lists and white lists by email name, domain or IP address
  • Real-time Blackhole List (RBL)
  • Delete, tag or quarantine emails
  • Automatic definition updates
  • Logging & Reporting


Mail Sentinel Flow Diagram
Mail Sentinel Flow Diagram - Click image to zoom

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'GB-OS', 'Surf Sentinel', 'Mail Sentinel' and 'GB-Ware' are registered trademarks of Global Technology Associates, Incorporated. 'GB Commander' is a trademark of Global Technology Associates, Incorporated. 'Global Technology Associates' and 'GTA' are service marks of Global Technology Associates, Incorporated.