i use to setup qmail to host a few domains, works really well, even mail blast is like really efficient. picked up a lot of fundamental about email, dns, ssl along the way.
just make sure you put a good filtering system before the email reaches your server. like mimecast, proofpoint, etc.
nowadays, you can further secure your access to pop3,imap on email server using service like cloudflare tunnel.
100% on this suggestion.
i use to setup qmail to host a few domains, works really well, even mail blast is like really efficient. picked up a lot of fundamental about email, dns, ssl along the way.
just make sure you put a good filtering system before the email reaches your server. like mimecast, proofpoint, etc.
nowadays, you can further secure your access to pop3,imap on email server using service like cloudflare tunnel.