|All that you need to say to an employee whose communication is laced with compliments is, "Thanks." There are many ways for employees to create grief for their managers, but this is one of the most benign. |
Somewhere along the way, this employee may have heard or read that managers enjoy receiving positive feedback from the troops, as this can leave a positive image in the manager's mind when opportunities arise. Your employee has misinterpreted this information by assuming that if some flattery may help, then massive amounts should put him over the top.
The problem is that his behavior is over the top. Rather than confronting him and possibly embarrassing him for trying to look good, it will make more sense to provide him with more information on the criteria that determine pay increases and advancement in the company. Let him see that raises, promotions, and special opportunities are provided to employees who demonstrate the highest levels of performance, productivity, and commitment, as opposed to those who demonstrate the highest levels of flattery.