In the inbox, tap to the left of a mail you want to select. Tick the check box that appear next to the mail, and select delete. Similarly you can select multiple mails and delete them all at once.
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- What to check if I can't sign in or create the Microsoft account on my Lumia phone during the initial setup?
- How can I train Hey Cortana on my Lumia phone?
- How does Hey Cortana work when Battery Saver mode is on?
- Will I get “Hey Cortana” voice activation after Lumia Denim update?