Set Category on Processed Emails
In the email integration, you can now automatically assign the category "InLoox" to emails that have been processed — such as when a task is created from an email (e.g., via flagging). This allows you to easily identify which emails have already been turned into tasks in InLoox directly within your inbox.
Prerequisite: The toggle Set category on processed emails must be enabled in the Integration Center.

Help article: Integrations: Emails