Learning Center » Ask Leo! » When will Hotmail return an undeliverable message? When will Hotmail return an undeliverable message? My question is this: Does Hotmail send an "undeliverable" message to the sender if I send an email to another Hotmail account which is inactive due to the "30 days of inactivity"? One of the casualties in the war on spam is the "message undeliverable" message that you might get back in response to an email that ... well ... couldn't be delivered. I say casualty, because you simply can't count on it any more. I'll look at your specific scenario and then I'll delve into why you can't count on bounce messages any more. Continue reading When will Hotmail return an undeliverable message? Tech Questions? Get Answers! - Ask Leo! ... by Leo Notenboom Leo's Answers Newsletter - Ask Leo! in your inbox every week. Source: When will Hotmail return an undeliverable message? Please Note: The above article was not written by staff of Connor's Web Guide and thus we can guarantee the content or stability of its external link. Peer Rating System: Would you recommend this article? 1 2 3 4 5 0.00 out of 5, With 0 Votes