At 10:22 6/24/2004, Thomas Berger wrote: >When XMAIL encounters a 5xx response for a given piece of mail from a >certain MX for the target domain, it should (of course?) not retry its >delivery attempts to *this* server (and this pice of mail). However >XMAIL should try delivery (of this piece of mail) for any *remaining* >target servers which have not (yet) given 5xx replies. > >Or do you imply that there are sites with the policy of blacklisting >servers which (exactly one time (for a given message ID)) got a 5xx from >the primary MX and although try (one time) to connect to the backup MX?
I'm not implying that. I'm outright saying it. That is *exactly* what many sites do, specifically because it's what spam delivery engines do (except typically they start with the lowest priority MX and work their way up - on the theory that the lowest priority MX is the least well protected). - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]
