according to this link i asked our admin to set the exchnage server to the right settings but they already were like this.

when i try to open the downloaded certificate from documents with certificate-manager there is no option to install it, i only get details on it.

after reading the wiki page from vitaly i googled how to install a self-signed certificate on n900 but all i get were threads on the nokia forum with people having the same problem.. also the linked pages to this forum couldnt solve the problem that the certificate is not listed in the certificate-manager and as i already said i dont have the option to install it.

when i browse to the http-frontend of the exchange server on the device i get a message that the site is trusted and can login..

so i guess its the problem with the non-listed certificate in the manager. can anybody please tell me how i can install it ?