Char-Set problem with eMail through Oracle package UTL_SMTP

In one project we send generated eMails with text from a table: MESSAGE to people from table: RECEIVER
The text (as it is for a german project) from table:MESSAGE contains german umlaut characters like (äöü).
In the generated eMail which are sent out, these characters are turned out to be translated into other characters
like l;'[.

How we can avoid this problem? It seems that the Oracle package UTL_SMTP uses it's own character set to send the mail, but we are not sure.

Any help would be greatly appreciated

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Beat Christen        chbeach_at_loxinfo.co.th     Phuket/Thailand