U need to have a button to multi select. As well as the ability to set up filters that will automatically filter mail.
Thank you for using Outlook and giving us feedback on features we should add. We really appreciate your support.
It is currently already possible to select multiple emails to delete them. To do so, press and hold the round icon at the left of an email until checkboxes appear. Once you’ve selected multiple emails, you’ll then be able to perform bulk actions on them, like deleting, marking as read, archiving…
Having trouble finding the feature? Let us know through the Help section of the app in the Settings. We’re here to help.
Thank you again for your support, we look forward to hearing more of your ideas very soon.
All the best
The Outlook Mobile Team