Header Information: Viewing
The header information in spam mail is an excellent source of data for defining anti-spam rules.
Many mail clients support viewing the header information of email messages, usually through a Properties item on the menus, an Options page on the open message, by saving the message as ASCII text, or opening the message using an ASCII editor such as notepad.
Header information is often not available on forwarded messages. To preserve the header information of second-hand messages, have users copy the message (as a file) and include it as an attachment in the email they are sending. Check the on-line help that came with the mail client for instructions on reading message header data.
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