Another issue found (still using "Inline, unicode conversion):
When I send an excel file (using the "send to" option inside excel) the
file will be converted to garbage. Looks like that the footer is added into the excel file (see screen).
When I send a file using "send to" from explorer it's working, also when changing the footer to "MIME part".
EDIT: Same when using "send to" within Word - file is garbage...