We recommend two resources:
One from Google, click here.
One from SpamCop, click here.
The full header information reveals what's behind the "From:", "To:", "Subject:", and "Date:" information in an email message. The full headers reveal the IP address of the sender and any other third-party services used, along with IP addresses. This information is very useful in tracking spam and determining the source of delayed messages.
Please let us know if you have any questions or need further help.
