How do Sandboxx Letters work?
What does a Sandboxx Letter look like?
What should I write in a Sandboxx Letter?
Can I send letters on my computer?
Why hasn’t my Sandboxx letter shipped yet or been delivered?
When will I hear from my recruit?
Sandboxx Security
How to Write to Your Recruit
Can I send a letter from a non-US country?
Can I fix my letter/photo once I've hit 'send'?
How can I manage and verify my return address within the Sandboxx app?