kern.maxfiles limit exceeded... what to do?

[VeeJay]

Hi there

I am keep getting this error on the screen. I have tried to solve this
problem by myself but still no luck. Could anyone guide what to do to
increase the limit and avoid this error?

kern.maxfiles limit exceeded by uid 1003, please see tuning(7)
kern.maxfiles limit exceeded by uid 1003, please see tuning(7)
kern.maxfiles limit exceeded by uid 1003, please see tuning(7)
kern.maxfiles limit exceeded by uid 1003, please see tuning(7)
Apr 14 11:08:08 server2 postfix/pickup[25022] : fatal : kqueue : Too many
files open in the system
Apr 14 11:08:08 server2 postfix/pickup[25023] : fatal : kqueue : Too many
files open in the system
kern.maxfiles limit exceeded by uid 1003, please see tuning(7)
kern.maxfiles limit exceeded by uid 1003, please see tuning(7)
kern.maxfiles limit exceeded by uid 1003, please see tuning(7)
kern.maxfiles limit exceeded by uid 1003, please see tuning(7)

Then I am unable to login on the server by consol or ssh. what to do?
-- 
Thanks!

BR / vj