Install spamassassin-rules-ja by entering the following commands in the terminal:
sudo apt update sudo apt install spamassassin-rules-ja
Description:
Japanese filter rules for spamassassin
This package inclues Japanese filter rules for spamassassin. . spamassassin is a very powerful and fully configurable spam filter with numerous features including automatic white-listing, RBL testing, header and body text analysis. It is designed to be called from a user's .procmail or .forward file, but can be integrated into your Mail Transport Agent (MTA).
Version: 9ubuntu1
Section: universe/mail