Windows 10 build 10074 was an early preview release in the Windows Insider programme, and its Mail app used this short chime to tell users a new email had arrived. The sound later circulated on soundboards as a generic new mail alert, where editors reuse it far beyond its original system context. Like a Discord notification or a simple ding, it works because listeners instantly understand the signal without needing to see the screen, which is why it remains popular for inbox jokes, parody notifications and retro Windows edits.