If I don't use my e-mail account will I lose it?
If you don’t use your e-mail for months then maybe you can lose your e-mail address or can face issues with being able to receive new e-mails. These are the few common reasons why a user may lose his or her e-mail.
A large number of free online e-mail services providers disable or delete an e-mail account that is not in use for many days. For example, users who do not sign into their e-mail account at least once within thirty-days can have their accounts deactivated.
Users who use Gmail, will not lose their e-mail unless the account is not used for 9 months.