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javax.activation.UnsupportedDataTypeException: no object DCH for MIME type text/plain at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:625) at javax.mail.Transport.send0(Transport.java:169) at javax.mail.Transport.send(Transport.java:98) at org.apache.commons.mail.Email.sendMimeMessage(Email.java:863)Caused by: javax.activation.UnsupportedDataTypeException: no object DCH for MIME type text/plain at javax.activation.ObjectDataContentHandler.writeTo(DataHandler.java:870) at javax.activation.DataHandler.writeTo(DataHandler.java:301) at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1350) at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1683) at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:585) ... 4 more