Possible RBL/CBL Blacklisting Message Detected

info Nessus Network Monitor Plugin ID 5509

Synopsis

N/A

Description

The remote host is either a client sending email or a server forwarding email. The monitored host appears to be sending email which is being flagged, remotely, as spam. Please examine the indicated error code to ensure that your network is not being blacklisted.

Solution

N/A

Plugin Details

Severity: Info

ID: 5509

Family: SMTP Clients

Published: 4/14/2010

Updated: 6/1/2015