Is there any way that I can host my own email while retaining privacy?

I currently use an online 3rd-party email service, but I would like to eventually move to hosting my own email server, because it would give me complete control over my data and would be a fun project. The problem is that I use seperate usernames for each of my different ‘identities’ online as a privacy measure, and hosting an email account for each of these on the same privately-owned domain name would allow one to easily associate the accounts with one another. Is there any way that I could host my own email while still retaining privacy in this regard? Or perhaps this is simply not possible?

Privacy Galaxy!

Posted in digital security, internet surveillance, net neutrality, nothing to hide, privacy, text