public class DetectSMTP{
    public static String retrieveSMTP(){
        String smtpSuggestion = "";
        //  I know how to do this - so bear with the pseudo code
        if(os == Windows){
            //  This is what I need help with
            FileReader fr = new FileReader(new File("ProbablySomeFileWhereOutlookKeepsItsSetttings"));
            loopIterator(run through lines in fr){
                line = fr.readLine();
                if(lineContainsSMTPSetting){
                    smtpSuggestion = line;
                    continue or break;
                }
            }
        }
    }
}