영문 상위일 때 Mac Mail에서 제목 한글 깨짐 현상

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">

<plist version="1.0">

<dict>

        <key>SendFormat</key>

        <string>MIME</string>

        <key>NSPreferredMailCharset</key>

        <string>euc-kr</string>

</dict>

</plist>

/System/Library/Frameworks/Message.framework/Versions/Current/Resources/English.lproj/LocalizedDefaults.plist