message queue durability, how do you make sure messages dont get lost?

when you're building systems that use message queues, keeping things durable is always a big worry. i've totally seen setups where messages can just vanish if a consumer crashes or if the queue itself has some kind of problem. so, what are your go-to strategies for making sure messages actually get delivered and you don't lose any data. are you just trusting the queue's own features, or do you add your own checks on top