Exchange-Task sets "edsva-MsExch-ApplyEmailAddressPolicy" to TRUE

We have the problem, that when running the Exchange-Task "Establish E-Mail Address", the attribute "edsva-MsExch-ApplyEmailAddressPolicy" is set to TRUE, despite AR Policy which prohibits this. This generates another SMTP address in addition to the specified SMTP address. To prevent this, the attribute "edsva-MsExch-ApplyEmailAddressPolicy" has not to be set to TRUE by the Exchange-Task.

Is it possible to modify the process of the Exchange-Tasks?