Update: Our partnership with Navy Federal Credit Union is wrapping up, which means free reply postage will no longer be offered after July 31st. They generously provided 1.5 million postage-paid envelopes to recruits to help them stay connected. We know staying in touch is more important than ever, so we’re excited to offer two seamless options to keep your communication flowing easily:
Your New Reply Postage Options
1. Add Paid Reply Postage in the App
After July 31st, you’ll see a $1.99 add-on option that covers return postage. As long as your return address passes USPS address validation, your recruit will receive the postage paid envelope. Each letter will still include pre-addressed return envelope and stationery so they can write home.
2. Send a Book of Stamps from the Shop
Prefer to give your recruit more flexibility? You can purchase a book of stamps in our Shop and send them directly to your recruit’s training location. This gives them options for future mailing needs—whether it’s replying to you or sending something else. * Please note that Stamp Packs cannot be sent to Marine Corps locations at this time.
These two options—app-based reply postage and stamp books—ensure your recruit can still respond home without hassle, and keep our letter-sending process smooth and reliable.
Need Help?
Our Customer Happiness Team is ready to assist if you have questions about reply postage, USPS verification, or sending stamps through the Shop—just message us in-app or email support@sandboxx.us.
Thank you for trusting us to help you stay connected. Your support means everything to your recruit—and to all of us here at Sandboxx.