I am using MAPI controls to send e-mails from my visual basic appplication.
All these days my e-mails were having only attachments, no message in the
e-mail body and the application was working fine. Recently I added message
to e-mail body of about 220 chars in length, from then it is giving following
error while sending the message from the application.

An unknown error has ocuured. Subject ...........
........., Account:......, Server:......, Protocol: SMTP, Server
Response: '550 This message contains a broken MIME container (uuencoded
line length is not a multiple of 4 characters).', Port: 25, Secure(SSL): No,
Server Error: 550, Error Number: 0x800CCC69

The above message appears in OUTLOOK EXPRESS Error window.
Please suggest a solution?