How to implement a disposable mail service?

Question

Mail server

Where to begin? Let's say I register a domain / hosting with an unlimited number of mailboxes. How to set up disposable mail for users? How to set "time to live" for a box?

Answer 1

To understand how to do something, you need to own the tools with which you can do it.
Raise postfix/dovecot locally, many questions will disappear by themselves.

Answer 2

It's getting weirder and weirder! Everything is more wonderful and wonderful! More and more curious! It's getting weirder and weirder! Everything is miraculous and miraculous!

I think it is not necessary to indicate the source)
or else:
could it be like this?:

I have seen such nonsense, in comparison with which this nonsense is an explanatory dictionary.