I'm trying to figure out where mail from a specific host is going
If I TCPDump the interface I see the incoming connection from their mail server to mine however, that is the last location I find anything
None of the log files seem to have any record of a mail attempt and the mail is eventually returned to them undeliverable (give up retry)
My question is, can any advanced connection logging be enabled to see where this mail is going to?
Is there a tree of the process the mail goes through?
I always considered myself a somewhat advanced user however, this one has me stumped
well.. progress
appears their server is causing rbl lookup errors
although, even if I disable the rbl's - the mail still isn't going anywhere
strange... strange... strange
found it....
the SPF info was being blocked by their server which caused a failure