We confirm that we have decided not to continue your employment beyond your probationary period.
As you are aware, your employment with the company was subject to a probationary period. Following regular reviews, your performance, unfortunately, has not reached a satisfactory standard during your probationary period. We are hereby giving you the notice for the termination and confirm that your last working day is June 25, 2016. It has been decided to terminate your employment at this point.
It is an unfortunate outcome, but I do wish you every success in the future.