I am new to VPS, previously I have been using hosting reseller with cPanel and WHM since it is very easy to create and manage emails for various domains, I am now entering the world of VPS, and I have started to configure my VPS with nginx and mysql , I would like to help me how to configure a good email service for various domains step by step, the step by step is because I am very new to the configuration of a VPS, my VPS is running on Ubuntu 16. Thank you For your support.
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