I am thinking of self-hosting some stuff right now, but that’s mainy OneDrive/Google Drive replacement and Google Photos replacement. I could maybe self-host Bitwarden, too. Email? Nope. I know there’s A LOT of work with that, with the domains (so my emails don’t get rejected by other parties), with spam filters and so on. I will leave that to the professionals, it’s too important. File storage is for me, but email is for communication with others. So congratulations if you got that working :)