Yeah, filter port TCP port 25 on your router for every box except your legit mail server. That is the quick and dirty method.
thanks, -Brad Ellis CCIE#5796 (R&S / Security) Network Learning Inc [EMAIL PROTECTED] www.optsys.net (Cisco hardware) Voice: 702-968-5100 FAX: 702-968-5104 ""Hamed Sedighi"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi, > Some days ago, I got an email from a network administrator who reported to me > about some spam mails from some IP Address which belong to my network. When I > investigated about those mails, I underestand the all of spam mails have been > sent without passing from my Mail Server. By the way, I don't have any smtp > services on my other stations or servers. How is it possible? Is there any > way > to block these Spam Emails in my Router? I will be happy if you advise me > about this problem. > > > Regards, > ***************************************************************** > Hamed Sedighi, > Member of AQR Network Technical Group. > Tel: +98-511-6071706 & 6071707 > Fax: +98-511-6073404 > URL: www.aqrazavi.net > Postal Address: Data Center of Rayaneh Quds Razavi, > Imamat 44 St., Mashhad, Iran. > ****************************************************************** Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=52652&t=52650 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
