Bob Hoffman wrote: > > > >> I don't know what you mean by "some domains". How are you >> implementing the domains? >> > > I have a server. It has centos. > I run apache. I have domains on there, websites.. Each is listed in the dns > and some are ip based and some name based. > a mail server needs REVERSE DNS that matches its announced name for best results. have all your domains use the same 'real' hostname for the MX record, and whatever IP this server needs to reverse to that same name, or at least a name in the same domain (my server reverses to hogranch.com, and uses mail.hogranch.com as its email MX, this seems acceptable to most... this server delivers mail for several different domains)