Cisco Cisco Email Security Appliance C390 사용자 가이드

Received Time: Time that the Email Security appliance received the 
message.

MID: IronPort message ID.

Subject: Subject line of the message.

The subject line in the tracking results may have the value “(No Subject)” if 
the message does not have a subject or if the IronPort Email Security 
appliances are not configured to record the subject lines in log files.

For more information about configuring Email Security appliances to log 
subject headers, see 

Envelope Sender: Address of the sender in the SMTP envelope.

Envelope Recipients: Addresses of the recipients in the SMTP envelope.

Message ID Header: “Message-ID:” header that uniquely identifies each 
email message. It is inserted in the message when the message is first created. 
The “Message-ID:” header can be useful when you are searching for a 
particular message.

SMTP Auth User ID: SMTP authenticated username of the sender, if the 
sender used SMTP Authentication to send the email. Otherwise, the value is 
“N/A.”

Reverse DNS Hostname: Hostname of the sending host, as verified by 
reverse DNS (PTR) lookup.

IP Address: IP address of the sending host.

SBRS Score: SenderBase reputation score. The range is from 10 (likely a 
trustworthy sender) to -10 (apparent spammer). A score of “None” indicates 
that there was no information about this host at the time the message was 
processed.

This section displays various logged status events during the processing of 
the message.

Entries include information about Mail Policy processing, such as Anti-Spam 
and Anti-Virus scanning, and other events such as message splitting and 
custom log entries added by a content or message filter.