User's Manual

SurfControl RiskFilter - E-mail V5.2.4 Administrator’s Guide 115
R EPORTS & L OGS
Connection Report
4
• RBL – How many of these connections were from blacklisted senders, listed in the RBL. This is set in
System Settings> Receive Settings > Connection Control > RBL (Perform real-time black list (RBL)
check).
• Directory Attack – How many connections were categorized as directory attacks and dropped. This is
set in System Settings > Receive Settings > Directory Attack.
• RDNS – How many connections were dropped due to RDNS failing to validate the reverse DNS lookup
of the senders IP address.
• Connection Limit – How many connections were dropped because the connection limit was exceeded
(for IP or For Server). This is set in System Settings > Receive Settings > Connection Control.
• Attachment – How many connections were dropped/blocked because they violated the connection
level Message Attachment policy. This is set in System Settings > Receive Settings > Message
Control (Block messages with attachments of a specific type).
• SPF – How many connections were dropped due to failing the SPF check. This is set in System
Settings > Receive Settings > Relay Control > SPF Authentication Configuration.
• SMTP Delay – How many connections were dropped due to the sending client starting the session
before the SMTP greeting message was displayed. This is set in System Settings > Receive Settings
> Connection Control > SMTP Greeting Delay.
• Block Host – How many connections were from hosts listed in the Blacklist.