Dear all..

I have built ZCS in my AMD64 box and it work fine. I tried to fill my box with 5 to 10 domains and use zimbra as Mail Hosting Server.

The problem comes when I try to send email from my second domain to Yahoo because Yahoo mark my mail as spam.

What should I do to make it right? I'm still confused about it.

Thanks for further explaination from you all.

Sorry about not good language. Still learning.. Hehehe..