the dryer sheet means something is wrong.
It may simply have been placed there as a homemade insect-deterrent attempt.
But if you notice wasps repeatedly entering and leaving the mailbox, that’s a different matter.
Don’t reach inside blindly.
Observe the mailbox from a safe distance and look for visible insect activity.
If there’s an established nest, professional pest-control assistance may be the safest option.
Don’t Rely on Fragrance Alone
A scented dryer sheet might make a mailbox smell different, but that doesn’t guarantee that insects will stay away.
Wasps are