Exchange server 2003 sending out emails
Hi Guys ,
Since coming back from holiday i have noticed something sending out mail via our exchange 2003 smtp server .
Its managed to send out like 15k emails out on a random day !
Its confusing me where its coming from , i dont think its an internal machine as its been sending out on the weekend and we only have 1 machine on all the time ( apart from the servers) .
its not using an internal account but using it own outside address ( its pretending to be banks etc )
Outside relay is disabled so its not that .
Can some one relay if they manage to obtain admin password etc ?