Regardless of who mails anything at all, an individual always does it.
With Postalocity, every user has their own personal mail account. Within your personal account you have your own postage and services meter. You can use it to mail personal letters or correspond with providers that might require written correspondence.
When you mail for your company, your account is linked to one or more “shared company accounts” for company mail, but that doesn’t take away the fact that you do still have your own personal mail account. Even if you leave your employer and your link to that company account is removed, you retain your own personal account that you can continue to use.