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The following are step by step how to get free license key VMware vSphere Hypervisor 😀 – Go to this page : https://www.vmware.com/go/get-free-esxi – Please login if have an account or create an account if not yet registered formerly – When you have done login into download center, you will see license key on License information ..

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Most of spam email sent from public IP who did not have PTR/Reverse DNS. What is PTR/Reverse DNS, you can find more information from Wikipedia 😀 : https://en.wikipedia.org/wiki/Reverse_DNS_lookup If you have Zimbra and want to enable PTR/Reverse DNS lookup for incoming, you can perform the following command su – zimbra zmprov mcf +zimbraMtaRestriction "reject_unknown_client_hostname" Please wait ..

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This part will explain about preparation install Zimbra on Ubuntu (Ubuntu 14.04 server especially). If you want to use CentOS 6 as Zimbra server, please refer into this guidance : How To Install Zimbra on CentOS 6. Or if you want to use CentOS 7 as Zimbra server, please refer into this guidance : How To Install ..

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