javax.mail.internet
インタフェース 
MimePart
SharedInputStream
クラス 
ContentDisposition
ContentType
HeaderTokenizer
HeaderTokenizer.Token
InternetAddress
InternetHeaders
MailDateFormat
MimeBodyPart
MimeMessage
MimeMessage.RecipientType
MimeMultipart
MimePartDataSource
MimeUtility
NewsAddress
ParameterList
例外 
AddressException
ParseException