• SonicOS 7.1
• About SonicOS
  • Working with SonicOS
  • SonicOS Workflow
  • How to Use the SonicOS Administration Guides
  • Guide Conventions
• Introduction to Diagnostics for Classic Mode
• Terminal
• Tech Support Report
• Check Network Settings
• DNS Name Lookup
• Network Path
• Ping
• Trace Route
• Real-Time Blacklist
• Reverse Name Lookup
• Connection TopX
• Geo and Botnet
• MX and Banner
• GRID Check
• URL Rating Request
• PMTU Discovery
• Switch Diagnostics
• SonicWall Support
  • About This Document

GRID Check

This feature helps to check the GRID Network IP Reputation - the reputation a particular IP address has, with members of the SonicWall GRID Network. When this feature is enabled, email is not accepted from IP addresses with a bad reputation. When SonicWall receives a connection from a known bad IP address, it responds with a 554 no smtpd here error and the SMTP session is rejected.

This feature is only available when the Essential Protection Service Suite or Comprehensive Anti-Spam Service is licensed on the firewall.

To perform a grid-check

1. Navigate to Device > Diagnostics > Grid Check.
2. Specify the Host IP Address.
3. Click Go.