[Evolution] pre-authentication to use exchange-owa

[<jerome doucerain connexim ca>]

Hi there,
I am trying to use the ximian/exchange/owa plugin to access my mail thru evolution, but in order to access 
the owa of my organisation, I am required to go thru a first step authentication using a secure-id. Is there 
a way specify the credentials needed by this first step authentication before the actual to the owa 
authentication ?
Thanks
Jerome