@drhaywardj I am not recommending it for everyone. Sadly, I don't, but it helps that I work at Sophos and use my Sophos XGS firewall and our cloud email filtering to handle much of the heavy lifting. Managed my own mail server since 1999, so I am well steeped in my LDAP/Postfix/Dovetail nuances.
@chetwisniewski @drhaywardj yeh, definitely not for everyone. I gave up running my own server in the early 2000's because spam, attacks, etc, just became too oppressive for my home ADSL connection to handle 😖