My son’s insisting that I can send him postcards to his name and 9-digit zip code, with no street address included. I don’t believe him. What’s the story and how do zip+4 zip codes work?
My son’s insisting that I can send him postcards to his name and 9-digit zip code, with no street address included. I don’t believe him. What’s the story and how do zip+4 zip codes work?
People sign up for my training program and I like to mail out a thank you card. But sometimes they come back undeliverable. Is there a way to tell in advance if a street address is legitimate?