<http://www.exchangeadmin.com/Articles/Index.cfm?ArticleID=7696>
also available here: <http://downloads.members.tripod.com/ladysun1969/misc/relay.tif> -Michèle Immigration site: <http://LadySun1969.tripod.com> Our new 2001 Miata: <http://members.cardomain.com/bpituley> Tiggercam: <http://www.tiggercam.co.uk> --------------------------------------------------------- Learn from your parent's mistakes - use birth control. --------------------------------------------------------- -----Original Message----- From: Stuart J Pittwood [mailto:[EMAIL PROTECTED]] Sent: Tuesday, November 13, 2001 5:24 AM To: MS-Exchange Admin Issues Subject: RCPT To Questions Heads up for another newbie questions. I received this email from our ISP this morning regarding our mailserver ---SNIP----- We have re-tested the server and it still seems to be accepting erroneous RCPT TO commands as follows: 220 mail.kingswinford.dudley.sch.uk Microsoft ESMTP MAIL Service, Version: 5.0.2 195.2966 ready at Tue, 13 Nov 2001 10:12:21 +0000 helo spam.com 250 mail.kingswinford.dudley.sch.uk Hello [212.47.78.44] mail from:<[EMAIL PROTECTED]> 250 2.1.0 [EMAIL PROTECTED] OK rcpt to:<"[EMAIL PROTECTED]"> 250 2.1.5 "[EMAIL PROTECTED]"@kingswinford.schoolzone.co.uk Although we do not believe that your server is actually relaying this mail, we are concerned that our system will again be flooded with thousands of 'bounce' mails the next time this exploit is tried by a third party Internet user. ----SNIP----- Could anyone help me solve this, I only know a little about exchange (we're using Exchange 2000 SP1) and this falls outside of my knowledge. We had a problem last week where someone was relaying 1000s of messages through our mailserver which resulted in our ISPs postmaster getting 1000s of bounce messages. While I beleive that I have closed the relay our ISP won't unblock our mailbox until this is resolved. any help is greatly appreciated. Stuart Pittwood List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm