Which statement best describes a suppression list?

Which statement best describes a suppression list?

• A. A list of emails that are frequently bounced in the past quarter.
• B. A list of addresses you should not mail because they unsubscribed or they bounced.
• C. A list of all subscribers who have never opened an email.
• D. A list of addresses you want to re-engage.

Answer: (B)

Suppression lists are used to stop sending to recipients who shouldn’t receive messages, either because they asked to unsubscribe or because their addresses have hard-bounced. The statement that best describes a suppression list is that it’s a list of addresses you should not mail because they unsubscribed or they bounced. This matters because skipping those contacts protects your sender reputation and helps with deliverability, since continuing to email unsubscribed people or invalid addresses can raise complaint rates and cause ISPs to throttle or block your messages. In practice, you compare your active sending list against the suppression list before sending. The other ideas don’t fit as well: a list of never-opened recipients targets engagement, not suppression; a re-engagement list is for trying to win back inactive subscribers, not for excluding them; and a list focused only on bounced addresses misses the unsubscribe aspect that suppression lists uniquely combine.

Suppression lists are used to stop sending to recipients who shouldn’t receive messages, either because they asked to unsubscribe or because their addresses have hard-bounced. The statement that best describes a suppression list is that it’s a list of addresses you should not mail because they unsubscribed or they bounced. This matters because skipping those contacts protects your sender reputation and helps with deliverability, since continuing to email unsubscribed people or invalid addresses can raise complaint rates and cause ISPs to throttle or block your messages. In practice, you compare your active sending list against the suppression list before sending. The other ideas don’t fit as well: a list of never-opened recipients targets engagement, not suppression; a re-engagement list is for trying to win back inactive subscribers, not for excluding them; and a list focused only on bounced addresses misses the unsubscribe aspect that suppression lists uniquely combine.