I installed a new Zimbra for for email services, when I test it to send and received email, I observed that, in the yahoomail , it can send and received. For hotmail and gmail, I can only send but cannot received. I mean here, that the hotmail.com and gmail.com can received my email from my zimbra but when I reply from this hotmail or gmail, my zimbra cannot received it..
Why??? can please somebody answer/help me solve this problem.