Underneath your e mail addresses in the left hand pane of WLM, you will see a Folder, "Outbox". Click on that and the offending e mail should be in there. Highlight it and click delete.
OnePlus 5 review
Alice Saey's mesmerising animation for Dutch singer Mark Lotterman
iPad Pro 10.5in (2017) review
Comment faire une capture d’écran sur un Mac ?