MxToolbox is a comprehensive tool designed for analyzing email headers and diagnosing various

email delivery issues. When Francis received a spoofed email asking for his bank information, using

MxToolbox to analyze the email headers would be appropriate. This tool helps in examining the

source of the email, tracking the email's path across the internet from the sender to the receiver, and

identifying any signs of email spoofing or malicious activity. It provides detailed information about

the email servers encountered along the way and can help in verifying the authenticity of the email

sender. Other options like EventLog Analyzer, Email Checker, and PoliteMail are tools used for

different purposes such as analyzing system event logs, checking email address validity, and

managing email communications, respectively, and do not specifically focus on analyzing email

headers to the extent required for investigating a spoofed email incident.

Reference:The use of MxToolbox in incident handling and email security analysis is commonly

recommended in Incident Handler (ECIH v3) study materials as a practical tool for email header

analysis and spoofing investigation.