Within Teamwork Desk, you can choose to enable Gravatar avatars for your customer icons.
Gravatar is a profile image that follows users from site to site appearing beside their names.
Note: If a customer contacts you and they are using Gravatar, their Gravatar icon will show. Otherwise, a default Teamwork Desk icon will show.
To enable Gravatar, click profile image to the right of the main navigation bar and select Settings from the dropdown menu.
In the Settings area, go to the General tab and select Site Settings from the left pane.
Under General Settings, you can choose the Gravatar option as your default customer avatar.
Note: In order for a customer's Gravatar image to show, they will have to have signed up to Teamwork Desk using the same email they used with Gravatar.
For more information, see: Managing Site Settings