does the mailman have a right to walk across your lawn?

Yes. USPS carriers are instructed to take obvious shortcuts to deliver mail, and that includes crossing lawns. You can request that USPS not cross your lawn, in writing, to your local postmaster. However, USPS can require you to move your box to the end of your driveway or somewhere else that's closer if they believe that not being able to cross will add time to that route.

Yes, he does. If you choose to rent a post office box and have your mail delivered to the box at the post office and then provide the mailman with a 'no trespass' notice you can make him walk back to the street and around your yard, but I would advise against that.

Remember, the mailman returns to the post office where your PO box would be and may accidentally spill his drink all over your mail every day if he thinks you're being a jerk about not letting him cross your lawn.

- Stuart

Yes they have the right but they should be respectful of how they treat it if they scuff it up deliberately then you can sue but if not then they done nothing wrong. Be aware though that some post workers delivering letters can behave like clowns one of my friends had her mail gone through and she's in a wheel chair disgusting.

I think you should hire a lawyer, pay a huge retainer ($10,000 +) and take the U.S. Postal service to court for all the damages you have incurred over this horrendous incident.

Of course a civil case like this will take years to reach the Bench, but hey, you have all of that extra money sitting around, why not let your lawyer have it? Right?

You invite a mail man to your door if u don't want him on u property put a Sign up there is no legal reason why he can't walk on u lawn. Put up a sign and if he continues contact his manager

Yeah. If that's what they need to do to get to get to your door or mailbox.