You can control the type of emails you receive or unsubscribe from specific email from TripIt.
On the website:
Sign in to our main site at www.tripit.com
Navigate to the Email Settings page by clicking on your user name (upper right of any page), then Settings and then Email Settings. After making your adjustments be sure to his Save at the bottom of the page.
Android and iOS apps
Tap on the More tab then tap Settings
Under Notifications, tap on Email Notifications
Then swipe left or right to choose which TripIt emails you’d like to receive.
Android (The page view will be slightly different than the above iOS view but very similar.)
Under Notifications, tap on Email Notifications.
Updated: Oct 6, 2016