Can my company blacklist me before leaving uae

We would like to inform you that if you travel to your country without informing your employer, the employer may register an absentee report against you, and then you'll be banned from working in the UAE.

Regarding the work ban stamp, here are the following informations:
where the worker may be banned from work for the following reasons :
- Illegal termination of his work relationship with the employer and his violation of the provisions of the Labor Law, such as neglecting the notice period in unlimited contracts, for example, or terminating a fixed-term contract before its date
- Committing one of the violations mentioned in Article 120 of the Labor Law
- The worker works for others without a permit issued for him by the ministry
- The worker remains in the country after the end of the labor relationship for any reason whatsoever, and for more than two months without any legal excuse
Unskilled workers who have not completed a period of 6 months working for their current employer and have never worked in the country