Below are a few reasons why auto-import may appear not to be working.
Your confirmations are not in your main email in-box but are filtered into folders automatically. We only scan your main email in-box.
Your email in-box has not yet been scanned today. TripIt will scan your in-box multiple times a day for travel plans
Your confirmation is for a restaurant in a location within 50 miles of your home location.
If you signed up with a Google Apps mail account your domain administrator must have IMAP enabledfor your domain. Please contact your domain administrator for questions about this feature.