Your Military email is active from the time that you join the service until you are discharged. Then, you can have the choice of changing your email to an inactive email address. Either way, you can access your military email from home, using a simple set of steps. It is just like web based email, in that you can access it on the Internet.
Go to the military login page at military.com.
Enter your sign in information (user name) and your password to access your military email.
Click "Sign In Problems" if you cannot remember your sign in information or have forgotten your password. They will be able to help you.