mailcow/mailcow-dockerized ? reverse-engineered prompt

I want you to build me a full featured self hosted mail server that runs entirely in docker.

It needs to handle sending and receiving emails for multiple custom domains and users, with rock solid spam filtering, virus scanning, and automatic ssl certificates. Users should be able to check mail through a clean web interface or any regular email client using imap and smtp.

Give me an admin panel where I can easily add domains, mailboxes, aliases, and manage everything without touching config files all the time. Throw in groupware features too so we get shared calendars, contacts and address books that actually sync.

Make the whole thing simple to deploy with one main compose file, a helper script to generate the initial config, and clear instructions so I can get it running on a vps in minutes then keep it updated. Focus on reliability and making it feel polished like a real product people would actually use every day.