On Sunday 24 April 2005 02:29, Ankush Grover wrote: > > What i want to know what kind of programs they are using to > filter those mails.I don't know much about their setup as my > friend is a software developer and he has very less knowledge > about the system administration part. > > Can anybody tell me about those sniffers and programs for filter > or checking the mail traffic. > You can use something like snort ( www.snort.org ) and set up your own rule definitions to trigger packet captures of interest. Regards, Mike Klinke