SonicWall introduced Grid Network IP Reputation from email security version 7.x. Grid Network IP Reputation is 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 Email Security 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 setting can be enabled under system - connection management in the email security user interface.
To find out if an IP address is listed in the SonicWall Grid Network database, we need to use the following link:
To perform the lookup, enter the IP address to be checked in the field given in the web page.We also need to provide the information requested of the CAPTCHA.
The results of the lookup will be posted in the section to the right of the web page.
If we need to add or remove an IP address or address range we need to click on link to review on the web page.
We need to fill up the form with the details and submit it. It's not guaranteed that all requested IP addresses are appended or removed as it can affect everyone using SonicWall EmailSecurity product. After a careful investigation and review, our spam review team will make the adjustment if necessary. If you truely feel that there is a false positive or negative which is affecting your business, please contact SonicWall technical support.