Osaka - Post Report Question and Answers
How do you send and receive your letters and package mail? Are local postal facilities adequate?
Sending packages and letters through Japanese mail is much more expensive than American mail. In the US it's 55 cents to send a letter. In Japan it's more like 95 cents. We can use the pouch at the Consulate. - May 2021
DPO is pretty speedy. All mail routes through Tokyo first. - Jul 2018
DPO. - Oct 2013