Checking routing information on e-mail to determine it is in a valid format and contains valid information is an example of which of the following anti-spam approaches?

The correct answer is D. Header analysis. Header analysis is an example of an anti-spam approach that checks the routing information on e-mail to determine if it is in a valid format and contains valid information. The routing information, or the header, is the part of the e-mail that contains the sender, the recipient,

Submitted by hassan_iq· Mar 5, 2026Communication and Network Security

Question

Checking routing information on e-mail to determine it is in a valid format and contains valid information is an example of which of the following anti-spam approaches?

Options

ASimple Mail Transfer Protocol (SMTP) blacklist
BReverse Domain Name System (DNS) lookup
CHashing algorithm
DHeader analysis

How the community answered

(53 responses)

A
2% (1)
B
8% (4)
C
4% (2)
D
87% (46)

Explanation

Header analysis is an example of an anti-spam approach that checks the routing information on e-mail to determine if it is in a valid format and contains valid information. The routing information, or the header, is the part of the e-mail that contains the sender, the recipient, the subject, the date, and the path of the e-mail. Header analysis can detect spam by looking for inconsistencies, anomalies, or falsifications in the header, such as mismatched domains, spoofed addresses, forged timestamps, or invalid characters.

Topics

#anti-spam#email security#header analysis#network security

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