Is Lob available outside of the US? Lob can mail all over the world. International mailings originate from the US and are mailed via USPS First Class Mail. If you are looking to originate mail in a different country, please contact us. Related articles Can I track my mail? What are Lob’s production days? Is your US Address Verification API CASS Certified? I need more users on my account than my Lob edition provides. What can I do? Is there a way to upload a CSV of my address list and documents?