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.
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In the Settings area, go to the General tab and select Site Settings from the left pane.
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Under General Settings, you can choose the Gravatar option as your default customer avatar.
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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