When tracking email from new email address, the contact created is set to owner = system

Hello,

On our customer project, we have the issue that when a user get's an email from an email unknown to Dynamics CRM and when the user tracks this email, the following behavior happens:

* The email is tracked in CRM (OK)

* The email is created as a contact (OK)

* The newly created contact is set as owner = 'System'.

Does anyone have an idea what could be causing this behavior?

Thank you for your feedback.