18th May Update: EMS will resume to USA and maybe Oceania and Europe. An additional 20% to 70% charge applies on all EMS parcels.
https://www.post.japanpost.jp/int/in...1/0518_01.html
30th June Update: EMS and air mail has resumed for Italy and New Zealand. All other restrictions remain in effect and the usual shipping delays apply.
https://www.post.japanpost.jp/int/in...630_01_en.html
18th June Update: EMS and air mail has resumed for various European countries including Sweden, Spain, and Norway etc. All other restrictions remain in effect and the usual shipping delays apply.
https://www.post.japanpost.jp/int/in...618_01_en.html
23rd April Update: USA joins the "parcel restrictions" list. Spain and other minor countries also join the list.
https://www.post.japanpost.jp/int/in...423_03_en.html
10th April Update: Several countries join the "heavy restriction of parcels" list: Australia, Sweden, Denmark, and Norway, amongst others.
https://www.post.japanpost.jp/int/in...409_01_en.html
As of the
2nd of April, Japan Post has implemented temporary restrictions on parcels going into and out of Japan.
https://www.post.japanpost.jp/int/in...401_02_en.html
The main takeaways are:
1) Severe restrictions on more than a hundred countries, including a handful like New Zealand which is basically blacklisted.
2) Economy SAL is no longer available so buying cheap Japanese stuff got that little bit more expensive.
3) Apart from the point 2 restriction above, most first world countries (USA, UK, etc) can still continue to trade parcels with Japan. The unlucky exceptions include Ireland, Italy, Austria, Switzerland, Spain, Hungary, Belgium, Poland, etc.
These changes are already reflected in most of the Japanese sellers on eBay (that I've seen) as well as proxy/intermediary websites.
For specific details about your particular country, see the .pdf in the links above.