Can someone make an EMAILING DAPP?

I dont understant why all people talking about WEB2<WEB3 and i dont see any simple EMAILING DAPP.

Can we create easy and fast with open source a free code of any emailing to add that dapp on functionx blockchain?

i touch a little ask on ChatGPT and i see this result; on spanish and then on english asked.

Maybe this can help_:

  2. List of 11 Web3 Email Tools (2023) - Alchemy

Maybe can be possilbe to make it someone of the community?