I am running VPS server running CentOS Linux 6.3, Webmin 1.59, and Virtualmin 3.94. For now, I only host one domain but planing to host 3 more domains. I'm having problem with Postifx server, can not send nor receive email. I need someone to help me fix this problem and config Postfix to run multi domains.
Someone with experience with the webmin control panel please, and someone reliable