These forums are locked and archived, but all topics have been migrated to the new forum. You can search for this topic on the new forum: Search for all emails with asian text received from others becames garbage chars on the new forum.
Since the webmail of usermin is not utf-8 capable, I installed other webmail client squirrelmail which is fully support utf-8.
I send email with asian text from squirrelmail, the recipient could read the text properly. Where emails received from other ppl are all garbage chars shows as below link
It looks like there's an update to this support request regarding that issue here:
https://www.virtualmin.com/node/17087