While we can process email addresses from anywhere in the world, currently we focus on postal mailing addresses only in the United States. So if you have a mailing address form another country, we may provide some light touches to it, but we will not be able to fully format and fix the addresses. This will change soon, though, and we have more countries on our roadmap!
For American mailing addresses, we add the congressional districts, we standardize the street names, we add the complete zip code, and a whole lot more!