Of course, you could decide to ignore them entirely, hoping your out-of-office divert message will redirect the email to someone else.
You could go into half-holiday mode, keeping an eye out for anything important while deleting all the obvious spam.
Or you could just completely ignore all emails received while you are on holiday and then mass delete them in one flash go. This is only for the brave and not for the fainthearted!
Smartphones and apps make it impossible to ever be free and shut off completely unless you are holidaying on the volcanic island of Tristan Da Cunha i