From: "Tony Nugent": > No no, these are the headers of the bounce message itself (back to > you). This message should contain the headers of the rejected > message that you sent to the list, that's where all the clues are. These are all the headers I got: the original mail just came back as an enclosure without headers. The other enclosure was a dat file with no header information. > You definitely have a DNS problem at your end (as has been pointed > out several times now). I thought the opposite had been concluded! In any case I think that the subject of this thread is the main problem - if the postmaster at redhat wakes up and tells me or my postmaster why they choose not to accept mail from my domain we could try to do something about it. I have no idea but I suspect it is something peculiar on redhat's side as I have never received bounces from anywhere else claiming my server is invalid. Thanks for everyone's help though. -- Psyche-list mailing list Psyche-list@redhat.com https://listman.redhat.com/mailman/listinfo/psyche-list