Only that one recipient. The message will be delivered to the others.
Mail delivery failed due to recipient's full mailbox
Heena Mirchandani
40
Reputation points
I have sent a mail to a group ID, but I'm getting the error "Delivery has failed to these recipients or groups: (one recipient's mail ID). The recipient's mailbox is full and can't accept messages now. Please try resending your message later, or contact the recipient directly". I cannot reach out to the recipient right now, but the mail I'm sending is urgent. If the entire group has a single ID, and one recipient's mailbox is full, does the mail not deliver to everyone in the group or just that single recipient?