Fill in the blank with the appropriate term. ______________is a method for monitoring the e-mail delivery to the intended recipient. Answer: Email tracking

Question

Options

• A(http = "login.pass.com") && (http contains "SMTP")
• B(http contains "email") && (http contains "hotmail")
• C(http contains "hotmail") && (http contains "Reply-To")
• D(http = "login.passport.com") && (http contains "POP3")

• A
  4% (1)
• C
  91% (21)
• D
  4% (1)

Explanation

Option C is correct because email tracking in web-based mail (like Hotmail) works via HTTP requests that expose email headers such as Reply-To - a field commonly used by tracking systems to embed return paths or beacon URLs that confirm delivery and opens. Capturing HTTP traffic containing both "hotmail" and "Reply-To" specifically fingerprints this tracking behavior at the packet level.

Why the distractors are wrong:

• A is wrong because SMTP is the sending protocol (port 25), not a delivery confirmation mechanism - and it doesn't operate over HTTP.
• B is wrong because filtering only on "email" + "hotmail" is too broad; it would catch general webmail activity, not tracking-specific traffic.
• D is wrong because POP3 is a retrieval protocol (downloading mail from a server), which has nothing to do with tracking delivery confirmation, and also doesn't run over HTTP.

Memory tip: Think "Reply-To = Reply back to tracker." The Reply-To header is the tracking system's return address - it's how the sender knows the email reached (and was opened by) the recipient. If you see it in HTTP traffic alongside a webmail provider, that's a tracking handshake in action.

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