
Send a letter anytime, anywhere.
Help your recruit push through the hard times and keep their morale high.
How Does Sandboxx Work?


Write your letter effortlessly.
Send a letter to basic training from your phone or computer, include a photo and enjoy next-day delivery. No more trip to the post office, remembering addresses, or buying stamps.
With Sandboxx, support has never been simpler.

We print & ship your letter overnight.
Your letter is printed on high quality, premium Mohawk paper, packaged into an iconic air-mail designed envelope, and shipped the same day.
Never buy an envelope, postage, or paper again.

We deliver your letter next day with tracking.
We ship overnight to every basic training base in the U.S. Next-day delivery and tracking comes standard because we cherish our military as much as you do.
Know exactly when your letter arrives for peace of mind.

Your letter arrives on base next day.
Our dedicated team of military experts resorts your letter so it’s easier to manage for mail call, getting your letter to your recruit up to 7 times faster than snail mail.
Mail-call ready letters, direct to your recruit.
What is a Sandboxx Letter?
01. Your message and color photo
Every letter includes an iconic airmail design envelope that contains your printed photo and letter on high-quality Mohawk paper.
02. Return Stationery
We include custom stationery that’s branch-specific for your servicemember so they can write back quickly and easily.
03. Pre-addressed return envelope
Also included, a return envelope and self-addressed sheet with your address already printed so replying is effortless.
04. Next-day delivery and tracking
Finally, we provide overnight shipping to any recruit base location with tracking all the way to base.