outlook without exchange would indicate POP mail users. Use any one of the readily available POP email plugins for filemaker.
I assume you've already notified all of your email users that you'll be duplicating their emails and collecting them as records into a database?
thanks that helps and are in a good price range. Do you know how keep track of the sent emails with POP?
You would need outlook manipulator to read out the sent mail folder in outlook. Or you could use your mail server to setup a rule that copies all outbound SMTP messages to a separate email account that you then read down.