I'm working on a email-client which shall automatically proceed incoming mail on a exchange server account.
but by using Outlook Interoperability Assemblies or MAPI, i always get the Message:
"Error: A program is trying to access email addresses ..."
is there any way of authentification against Outlook to prevent this message
There must be one, because using Mozilla to access Exchange Server doesn't produce such a message.

Email without Outlook warning
Raudhah
Mozilla's Email client does not use Outlook. They use their own implementations of the email protocols to communicate with Exchange server hence they have nothing to do with Outlook.
I'd suggest you post this in the VSTO (Visual Studio Tools for Office forums) to get Outlook specific information.
Regards,
Saurabh Nandu
www.MasterCSharp.com
JimIT
The framework provides SmtpMail class that can be configured to send emails through the Exchange Server. Although there are no classes to read information like Emails/Folders etc from the Exchange Server. You will have to use the Exchange SDK for it.
Regards,
Saurabh Nandu
www.MasterCSharp.com
www.AksTech.com
Najmunnisha
as you are CSharp Master ;-) can you tell me if the framework has a built-in way to communicate with an exchange server so that i don't have to use outlooks interop-api