Asian type characters in Outlook email

[trishash]

One of our users sent an email to a client in English. the client replied to
the email stating that he couldn't read it. The original message shows in
the reply as Asian characters. He has no other reports of this from other
clients. Could this be something on the receiving end instead of my user's
system?
Win XP Pro, Outlook 2003, composed email in HTML.

 

[Pat Willener]

What was the encoding of the original (English) message sent?

Do you know the recipient's environment, e.g. non-English email client?

Anyway, whatever the answers to the above questions, it's hard to
imagine why English (single byte alphabet characters) would get
transformed into Asian multibyte characters.