LLK wrote:Would like to know if there is any 3rd party plug in to record the web mail content
No such 3rd party plugin exists as far as I am aware.
LLK wrote:It has been an issue for us to track misuse of resources in the organization or even data stealing
If your clients are connecting to their webmail sites using plain unencrypted HTTP, you may be able to use a packet sniffer to record the port 80 traffic, letting you see the raw data being sent between the client and the mail server. However I'm certain most webmail sites would employ SSL encryption to prevent such man-in-the-middle attacks, in which case packet captures will only show meaningless garbage and nothing useful.