Temporary email can create difficulties when purchasing event tickets. The organizer may send the ticket, entry instructions, schedule changes, or cancellation information to your registered address.
Some ticket systems also require access to the original account or an email confirmation when transferring or retrieving a ticket. An expired inbox could complicate those steps.
Use a lasting address for paid events and any booking where attendance depends on reliable delivery. Save your booking reference and follow the organizer’s instructions for accessing the ticket.
Do not assume that a screenshot will always be accepted. Entry requirements depend on the ticketing system and event rules.
For a free event with an immediate, downloadable admission pass, temporary email might work if permitted. Still consider whether you need later updates before deciding which address to provide.