One of the fundamentals of email marketing is to avoid having emails marked as spam; this can be done by

• A. Sending multiple unsubscribe requests
• B. Forging the sender address
• C. Adding an unsubscribe option
• D. Reducing email frequency

Answer: (C)

Giving recipients a clear, easy way to unsubscribe is essential for healthy deliverability. When people can opt out without friction, they’re less likely to mark your emails as spam, which protects your sender reputation with email providers. It also aligns with legal requirements in many regions and keeps your list clean by removing those who aren’t interested. This respect for choice often leads to better engagement from those who remain.

The other options don’t fit this goal. Forging the sender address is deceptive and illegal, and it damages trust and deliverability. Reducing frequency can help a bit, but it doesn’t solve the fundamental issue of consent and can still lead to spam complaints. Trying to manipulate unsubscribes isn’t a legitimate or effective approach either.