Ah.. Thanks for the clarification, I never knew that! :) Sorry for the terse reply, rushed off my feet at work :(
Kind regards, Darren > -----Original Message----- > From: David B Funk [mailto:[EMAIL PROTECTED] > Sent: 30 March 2004 15:35 > To: Darren Coleman > Cc: [EMAIL PROTECTED] > Subject: RE: [EMAIL PROTECTED]: bounce "No such user" > > > On Mon, 29 Mar 2004, Darren Coleman wrote: > > > The problem is, SA can only assess the spammyness of an > email AFTER the > > headers have been received (i.e. From, To, etc) by which > point it would > > be impossible to return a true 550 error. > > > > Daz > > It would seem so but the SMTP protocol allows you to return any > 5XX status code at any stage, so you are allowed to return a 550 > at the final 'DATA' ACK. You could argue the 'true'ness of that > action but the protocol says that it should be honored. > (Given that there's no honor among spammers, this is probably a > pointless exercise anyway. ;( > > This is easily do-able if you've got SA integrated into your MTA > at the SMTP level such as sendmail + SA + milter > > > -- > Dave Funk University of Iowa > <dbfunk (at) engineering.uiowa.edu> College of Engineering > 319/335-5751 FAX: 319/384-0549 1256 Seamans Center > Sys_admin/Postmaster/cell_admin Iowa City, IA 52242-1527 > #include <std_disclaimer.h> > Better is not better, 'standard' is better. B{ >
