I don't recommend setting up an email server. A quick Google will yield lots of stories on why this is a very bad idea. Although I have set up dozens of corpo

I don't recommend setting up an email server. A quick Google will yield lots of stories on why this is a very bad idea. Although I have set up dozens of corporate email servers in the past, I didn't find the idea practical for myself. My solution is to use a domain registrar who allows catch-all email address and forward emails to a GMail account. I set up MailGun with DKIM and SPIF records as required for my domain to send emails using SMTP. Once setup, I no longer need to do any routine sysadmin. If you only need a single domain with lots of addresses, then Google Office might be an even simpler option.