Third, enter your password to be able to access and allow you to read the mail. By default, any and all mail goes to your main mailbox. If you need to redirect mail, you can have as many redirects as you want. You can redirect mail using that option in the Plusmail control panel. Each new POP3 gets its own username and password to access the mail server.
Most people find it inconvenient to have more than just the default mail box.
If you need to add more POP3s, just go to the add POP3 option in the Plusmail control panel and you can instantly add a new POP3 to your account. Redirected mail does not count against your free extra POP3s. When you send a piece of email, the mail server checks to make sure you are a valid sender of the mail. It does that by checking your username and password before sending a piece of mail. This does not mean that your headers must all be the same.