Verify if an email sender is legitimate or spoofed. The authoritative tool used by security professionals to detect email impersonation and sender spoofing.
The name shown as the sender (helps detect impersonation)
If the email has a different Reply-To address (red flag if mismatched)
What This Tool Checks:
Display: "PayPal Security"
Email: random123@gmail.com
Legitimate companies use their own domains, not free email
From: support@legitimate-looking.com
Reply-To: attacker@different-domain.com
Your reply goes to a different address controlled by the attacker
Real: support@paypal.com
Fake: support@paypa1.com (using "1" instead of "l")
Carefully verify domain spelling