From: "Tony Nugent" > Their mail server(s) will not accept email if the email address you > are sending from is unresolvable in the dns.
And rightly so. However I believe my address is resolvable otherwise I would receive no incoming mail, and the strange thing is that redhat accepted my mail for several weeks before they suddenly started rejecting stuff. I'm all in favour of anything that reduces spam, but I think a system that trashes false positives is in some ways worse. Sorry to keep having a go at redhat, but I believe that if anyone understands mail server configuration they should!
