sending email issue

Hello,

 i used to get the user roles and info from sql table, now im using windows authentication and active directory. i have 2 distribution lists created in active directory. now can someone look at my current code and help me incorporate my sendEmail method into it? see below

 

the part of my submit button that triggers the sendEmail method
if (nStatusIDAPP == 3)
{

SendHandsetMail(2, 2, strTACAPP); //where the first 2 is the roleID, second 2 is the ActionType and third is the TACAPP

}

lblErrorAPP.Text = "Save Successful";

 

so here is my current sendEmail method
...