imap_utf8
    (PHP 3>= 3.0.13, PHP 4 )
imap_utf8 --       Converts MIME-encoded text to UTF-8     
Description
string 
imap_utf8 ( string mime_encoded_text)
     Converts the given mime_encoded_text to       UTF-8. MIME encoding method and the UTF-8 specification are described in      RFC2047 and       RFC2044 respectively.