Within Teamwork Projects, you can update your status in your Projects site via email.
To do this, you can email the unique email address for your site related to status updates.
To find your email address, go to the 'Statuses' tab at the top of the screen then click the 'Options' button on the right:
The email address will be in the format email@example.com
Note: Only emails from users within the owner company will be able to update their status via email.
For more information see: Disabling status update emails