I think the easiest method of doing this would be to use an existing POP or IMAP email account you already have, and just set it up in your Messaging to use that account. If you don't already have one, Gmail is free and will do the job. Using POP will only allow you to manually check your email, or have the device automatically check at intervals up to 15 minutes.
It's not like BB where any email account can be automatically pulled. If you want your device to automatically get email when they are available you'd need to get an Exchange server setup on your phone. mail2web
offers this service for free, so you could set up an account with them, set up the Exchange server on your phone, then have the traffic alerts sent to this account. Then whenever a new one was sent it would arrive at your phone instantly.