[SM-USERS] The concept of custom charset plugin, but for other languages

[Rex Hale]

Squirrelmail 1.4.5, Courier on Fedora Core 3, in case it matters. My default charset is set to utf-8   I have some users who are Japanese who have noticed that since compose switches the charset (to iso-2022-jp), unless the recipient (also on squirrelmail), is displaying in Japanese, the characters are garbled.   If I send japanese from my English (custom charset), everyone can see the characters fine, regardless of their language setting.   What I need is some way to make it so that Japanese composes in UTF-8 so that recipients of any charset can display the messages properly.   Is it as simple as editing the i18n.php and setting the charset for Japanese to utf-8.  I did that on a test box and it seems to resolve the issue, but I am wondering what ramifications this will have on other aspects of squirrelmail.   Any ideas?   Rex