Determining if an email has been sent by a hijacker or the actual account owner is challenging. The most straightforward method suggested is to contact the sender directly via phone to verify the authenticity of the email. However, some users express reluctance to make this call, fearing confrontation or doubt about the sender's intentions. Experiences shared include instances of email hijacking, where friends received fraudulent requests for money, highlighting that hijackers can easily access accounts through various methods, including phishing scams and keystroke loggers. While some participants acknowledge the difficulty in identifying a hijacked email without direct communication, others suggest involving a mutual acquaintance to make the call if one feels uncomfortable. Overall, the consensus is that there is no foolproof way to determine the sender's identity without direct verification.