Thanks Bill. I just want to protect an existing exchange server which is getting a lot of spam emails right now and consuming a lot of precious bandwidth. I am planning to setup qmail-scanner+ClamAV+SA on a toaster install and forwarding mails thru smtproute to an exchange server.
Best, Neil -----Original Message----- From: Bill Shupp [mailto:[EMAIL PROTECTED] Sent: Monday, November 29, 2004 3:34 PM To: [EMAIL PROTECTED] Subject: Re: [toaster] Qmail Pre filter Neil wrote: >Hi, > >Does anybody have good ideas on implementing a qmail filter to pass on >emails to an exchange server? I've read a couple of em thru google >search but none I have seen that would prevent dictionary attacks on the >qmail server. Is there a way I could have chkusr work with smtproutes >forwarding to my exchange server? > >Any thoughts would be greatly appreciated. > > I'm not aware of anything that does this. There would need to be a mechanism to find out if a user/forward/list exists on the Exchange server. I suppose you could write a plugin for qmail-spp that makes an smtp connection to the actual exchange server and check if the recipient is valid. Seems excessive, though. Why not just send mail to the exchange server directly? http://qmail-spp.sourceforge.net/ Regards, Bill
