I don't know about convetions, rfcs and stuff, but our system always needs to first change the character encoding to jis, and then add these headers: 

  Content-Type: text/plain; charset=ISO-2022-JP
  Content-Transfer-Encoding: 7bit

[download]

Maybe that's what you need to do?

In reply to Re: cgi email Japanese contents scripting problem by lestrrat
in thread cgi email Japanese contents scripting problem by stonemen

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