Hi There I'm a Zimbra And Linux Newb I have installed Zimbra 5 on OpenSuse 10.3 and it works fine for the most part but when receiving mail from certain addresses the mail gets rejected when i look in the maillog i get the following error:
450 4.7.1 CLient host rejected: Cannot find your hostname.
and other times
450 4.7.1 Hello command rejected: Host not found;
I've been searching the web for weeks to no avail. please any help will be appreciated