Cons: some knowledge of Docker is required A static IP is helpful but not a requirement If your ISP uses gcnat then that’s a problem. Using a residential IP isn’t great for reputation

Pros: It’s a very well thought out system Very few bugs Excellent documentation Includes spam protection, webmail and a bunch of other features itjustworks

I self hosted email for years and it did take a fair bit of maintenance. Since moving to Mailcow all I have to do is keep it updated (subscribe to their telegram channel for updates) and that’s it. It’s never broken or needed maintenance other than that.

Mailcow is great and is completely free

With a sign saying beware of the leopard?