I/O error flushing output to client

[Muhammad Talha]

Dear all

i am facing this problem with some of my clients


Mar 16 09:49:35 mail popper[20769]: I/O error flushing output to client  at
192.168.197.188 [192.168.
197.188]: Operation not permitted (1)

what will the reason of this problem ?


Regards

Talha