I've been using exchange online for my personal email. I had to do a bit of fenagling with my dns records, which is old hat at this point, to get it to work but

I've been using exchange online for my personal email. I had to do a bit of fenagling with my dns records, which is old hat at this point, to get it to work but it basically costs $4 per month per user and since I'm the only user it gives me the freedom to use my own domain name and not have to worry about selfhosting. Prior to that I was using exim as my SMTP server and dovecot as my imap/pop3. But managing it was a huge hassle. $4 a month is worth the effort of not maintaining it myself.