Email spoofing is a technique of forging an email header into tricking recipients into thinking the sender is a well-known brand or friend.

Spoofing is a common technique used by attackers. These fake (“spoofing”) messages appear to be from a source other than the actual source . This method is often used in phishing campaigns that aim to obtain user credentials. The anti-spoofing technology in EOP specifically checks for forgery of the “From” header in the message body (this information is used to indicate the sender in e-mail clients). If EOP has a high probability that the “From” header is forged, the message is identified as spoof.

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