I recently submitted my candidate kit and have completed the majority of my application. I received the email address for my ALO and want to set up the interview, but I do not know how to address him in the email. Should I address my ALO as "sir" because I do not know their rank or something else? Is there a way to find his rank? I am probably being too detailed on something small like this, but I just want to make sure I address him correctly, especially on our first contact. Thanks in advance.