Envelope and Header Summary

This section displays information from the message envelope and header, such as the envelope sender and recipients. It includes the following information:

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

MID: 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 Email Security appliances are not configured to record the subject lines in log files.

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.

Cisco Host: Email Security appliance that processed the message.

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

Attachments: The names of files attached to the message.

Sender Group: The sender group that received the message.

Message Size: The size of the message.

Policy Match (Incoming or Outgoing): The policy that received the message.