Cisco Cisco Email Security Appliance C160 Mode D'Emploi

Delivery logs record critical information about the email delivery operations of AsyncOS. The log 
messages are “stateless,” meaning that all associated information is recorded in each log message and 
users need not reference previous log messages for information about the current delivery attempt. 

The delivery log records all information pertaining to email delivery operations for each recipient. All 
information is laid out in a logical manner and is human-readable after conversion using a utility 
provided by Cisco. The conversion tools are located at:

http://support.ironport.com

Delivery logs are recorded and transferred in a binary format for resource efficiency. Information 
recorded in delivery logs is shown in the following table:

If the delivery status was bounce, this additional information appears in the delivery log:

Wed Feb 14 12:11:45 2007 Info: RPC Message done RCID 756814 MID 2317877

Wed Feb 14 12:11:45 2007 Info: Message finished MID 2317877 done

Success (message was successfully delivered) or bounce (message was hard bounced)

Delivery time

Injection time. 

del_time

 - 

inj_time

 = time the recipient message stayed in the queue

Message size

Message ID

Recipient host IP. The IP address of the host that received or bounced the recipient 
message

Envelope From, also known as Envelope Sender or MAIL FROM

Source host IP. The IP address of the host of the incoming message

SMTP response code from recipient host

SMTP response message from recipient host

Recipient ID. Recipient ID starts with <0>, messages with multiple recipients will have 
multiple recipient IDs

Envelope To

Number of delivery attempts

RFC 1893 Enhanced Mail Status Code interpretation of the SMTP response during the 
delivery

SMTP response code from recipient host

SMTP response message from recipient host