Can I add my private inbox to Shipfix without other users in my company seeing it?

Yes, you can also add your private inbox which is then only visible to you

Shipfix enables teams to work collaboratively around group inboxes (eg: chartering@ABCtrading.com) and also allows you to use your private inbox(es) like any other email client. This offers our users the ability to share trading inboxes productively and collaborate on private email threads selectively whilst remaining fully in control of confidential information.

Shipfix is designed to work with any email setup, click here to read more on this topic.