I used to run my own Zimbra email server - it was slow, kept crashing, and had all sorts of weird issues. It also was less than straightforward to get going. I

I used to run my own Zimbra email server - it was slow, kept crashing, and had all sorts of weird issues. It also was less than straightforward to get going. I jumped over to iRedMail and LOVE it. exactly what I wanted. Super fast to get going, easy to config. It's true getting things setup can be a pain though - with DNS and all that. But you can use mxtoolbox to resolve them - but it can take some work. Still, I love having mail on my own server. Being able to spin up new domains and easily add email is great. Not having to pay for anything but the hosting is appealing too.