Adapter moule for handling the special characters in PI 7.31

Hi Experts,

I have a issue with the attachement content of the mail. Special character carriage return exists in the mail attachment while processing the message from idoc->pi->mail. When i check the output of message mapping attachment content doesn't have any special characters at the endof the line. But at the end of scenario while sending the messgae to mail receiver carriage return character exists at the end of the line in the mail attachemnt.

Please help me how to remove the special character from the attachment content.

Thank you.

Regards,

Jaya