• SonicOS 7 Diagnostics
• 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
• URL Rating Request
• PMTU Discovery
• Switch Diagnostics
• SonicWall Support
  • About This Document

Real-Time Blacklist

The Real‐Time Blacklist feature allows you to blacklist SMTP IP addresses, RBL services, and DNS servers.

To blacklist an IP address, RBL domain, or a DNS server

1. Click Real-Time Blacklist under Diagnostics.
2. Enter an IP address in the IP address field, a FQDN for the RBL in the RBL Domain field, or DNS server information in the DNS Server field.
3. Click GO.