問題文
After several sends, a small number of addresses at one corporate domain stopped receiving mail although they never unsubscribed. Their status now reads as held. What does that status mean?
選択肢
- Delivery has been paused for those addresses because the recipients asked to stop, and no further attempt is made until the status changes.
- Delivery has been paused for those addresses after repeated temporary failures, and no further attempt is made until the status changes.
- Delivery has been paused for those addresses because the account reached its send limit, and no further attempt is made until the status changes.
- Delivery has been paused for those addresses because the message failed validation, and no further attempt is made until the status changes.