Know mac address

when we received a mail from terrorists based on the mac address only the cbi officers identify from where they got mail exactly.

start->cmd->ipconfig /all

every sytem has a unique mac address not only in network.all individual systerms also maintain uniqueness.

mac or phisical address :
it is a 48 bit address.

hi

hi,

friends here i would like to post some tips in using comtuer and answers related to some problems.u can also post somthing which u know