Hi,
The problem is that the German umlauts are converted to question marks 
. I create a mail message (see below). After the ship in here: Outlook 2010 can be seen, the German umlauts as question marks. 
...
Gesch?ftsf?hrer: ....
RG M?nchen ....
...
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mailmessage obj_message
...
s_mapi_connector = 'SMTP:'
...
obj_message.notetext = struct_drucker.s_email_message
...
obj_message.recipient[l].address = s_mapi_connector + s_email_adress
obj_message.recipient[l].recipienttype = mailto!
obj_message.recipient[l].name = s_email_recipient
...
...
// Email per MAPI-Client
obj_session = CREATE mailSession
en_result = obj_session.mailLogon(mailNewSession!)
en_result = obj_session.mailsend(obj_message)
en_result = obj_session.mailLogoff()
...
DESTROY obj_session
...
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Does anyone know a solution? 
Thank You
André Rust