Email messages are not viewable on multiple computers.
If an email program using POP3 is used to view email, it will download all mail from the TOAST.net mail server and place it locally on the computer. Since the email is no longer in an Internet accessible location, the messages will only be viewable on that computer.
Set up your email program to access your account using IMAP instead of POP3. IMAP configuration will allow messages to be kept on the mail server, so they will be accessible from any Internet connection.
To set up your TOAST.net account using IMAP Click Here