On Tue, 17 Oct 2006, Billy Huddleston wrote: > Okay, so next question.. might be totally out of topic for SA.. How can I make > the front-end mail server know if a email exists on the backend server.. > Example.. I use qmail on my front-end.. I don't like receiving tons of > invalid > emails just to turn around and attempt to deliver bounces that could possibly > be going to honeypots or servers that don't take mail etc.. I solved this on > my own domain by using a smtp vrfy script that checks against my backend mail > server.. but since the other domains don't have mailboxes on my back-end > server > and is only setup to relay their mail, it blindly accepts EVERYTHING for > them.. > any suggestions? > > Thanks, Billy
Are you asking how to prevent backscatter? http://www.google.com/search?hs=NQZ&hl=en&lr=&c2coff=1&client=opera&rls=en&q=spam+backscatter&btnG=Search If so, you'll need to look at your MTA. Chris St. Pierre Unix Systems Administrator Nebraska Wesleyan University
