java mail API - exception

[Sridhar M Swaminathan]

Hi.. i am using java mail API for mailing activiites.. infact there was no problem a few days back. but today when i opened the same code i am being thrown an error as below.. Pls help
javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: IOException while sending message;
nested exception is:
javax.activation.UnsupportedDataTypeException: no object DCH for MIME type text/plain; charset=us-ascii

Thanks
Sridhar

[Rob Ross]

Sridhar,
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