M3AAWG 48th General Meeting | San Francisco, CA | February 2020 Japan Specific Email Conditions Yoshitaka Hirano Feb. 19, 2020 San Francisco, CA

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 Japan Specific Email Conditions • Missending Prevention • PPAP

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 Missending Prevention To: [email protected] Hello Rabbit! Long time no see! ×

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 What is PPAP Send Ｐassword protected file Send Ｐassword Ａngouka (Encrypt with password) Ｐrotocol A method to send password by email, after sending the encrypted attachment by email

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 PPAP Hi, I send it as an attachment. Password Encrypted ① ② Hi, The password of attachment on earlier email is ....

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 Have you ever seen PPAP email?

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 Do you use PPAP?

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 Why do Japanese people use PPAP?!

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 Open Round Table in JPAAWG Nov. 14 – 15, 2019 Tokyo

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 Reasons to use password protection for the attachments? • Only the specific persons can see the files • For missending prevention • Psychological Safety for Receivers • Psychological Safety for Senders • Policy rules of company to use it • Customers force us to use it • It is compressed • It can keep folder structure • Feel relieved when the mail is forwarded • It is not rejected by the Virus Scanner by mistake • It is not tampered • It is useful that the multiple files are archived in to one file

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 Reasons NOT to use password protection for the attachments • It can be scanned by gateway.  Psychological Safety! • Efficient for work (No need to decode) • The number of emails is reduced (No password notice email) • No need to explain to the foreign people when sending abroad • No incidents, such as lost password and cannot open • Mail server can create search index for attachments

M3AAWG 48th General Meeting | San Francisco, CA | February 2020 Conclusion We encrypt the attachments for psychological safety, but also we do not want to encrypt attachments, for psychological safety! Currently, in Japan, there is a movement to stop such customs because it is not in the modern age, but if you can refuse to receive encrypted ZIP as a dangerous thing that can not be checked for viruses, it might be possible to quit this old habit. But we do not have the alternative of this yet.