Oh, by the way did I mention that I am actually an employee of the Post Office So I think it is pretty embarrassing that some don't know the rules correctly. I process mail images in a huge warehouse with hundreds of others. All mail is scanned by machines and read my computers. If the computers can read the address the mail goes on its happy way. If it cannot be read due to bad handwriting, missing info, or strange computer fonts etc...., the mail image in scanned and sent via the internet to either my center or one in Kansas. Than a PO encoder (ie a real human being) has to decipher the info and hopefully get the mail on its way. Thousands of workers are processing mail 24 hours a day7 days a week in this fashion between the two centers in the country; each looking at over 1000 letters each hour. I work 4 nights a week 6-midnight or 5-1:30 am while my kids are hopefully sound asleep.