I have demonstrated step by step, how to set up a SMTP mail server in your local system. Setting up a SMTP server is very simple. And this knowledge will be very helpful for you from a system admin perspective. I have created a email server using hmail server. And then created domain/accounts step by step. Also, using different email client I have sent mail between the accounts. Hmail server download link: https://www.hmailserver.com/download​ Thunderbird download link: https://www.thunderbird.net/en-US/dow…​ EM Client Download link: https://www.emclient.com/