You can select all messages by clicking the command + A keys (Mac) or the control + A keys (Windows). Once you have done that, click the Delete icon to delete those messages.
I tried all options including shift key and nothing works. I have thousands of emails in my sent folder created by Zoom within Canvas and I can't delete them at once as I can't select them at once.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.