On Fri, 5 Dec 2008 13:15:09 -0500, "S. Dobbs" <[log in to unmask]> wrote:
>DELIVERY FAILURE: Error transferring to mail.ASHLAND.COM; SMTP Protocol Returned a Permanent Error 553 5.1.8 <[log in to unmask]>... Domain of sender address [log in to unmask] does not exist
You have a (public) DNS problem. The domain name of your server,
LISTSERV.HERC.COM, is not in public DNS. This is what the receiving domain
error messages are all complaining about.