I currently use Thunderbird but am migrating to Outlook 2003 for the groupware features. I have multiple email accounts setup and managed within Thunderbird in this manner: Notice that each account has its own respective inbox, outbox, sent items, etc. I want to set Outlook up in the same manner by having the different accounts linked/associated to its own .pst file. Googling has revealed two main methods: 1) Use the rules wizard to sort incoming mail from multiple accounts into different folders 2) Use separate Outlook profiles Neither of these really meet my goal. The rules wizard method isn't robust enough (no separate outbox, trash, etc.) and the Outlook profiles method would, I believe, require closing/opening Outlook to check each account instead of just leaving the application open. I did see one post on the net that said "there is an option" to do what I want, but it didn't explain how to do so.