migadu.com, it’s a Swiss company with servers in France (great privacy laws). You can host multiple domains and unlimited mailboxes on the same account, which starts at $20/year. They limit on numbers of emails sent/received (200/20/day on the smallest account) and on total account space (5 GB smallest), not on features. You can host multiple domains, multiple mailboxes, multiple aliases, individual login per mailbox, TLS connections, IMAP/SMTP/POP/webmail and all the features you can think of.
migadu.com, it’s a Swiss company with servers in France (great privacy laws). You can host multiple domains and unlimited mailboxes on the same account, which starts at $20/year. They limit on numbers of emails sent/received (200/20/day on the smallest account) and on total account space (5 GB smallest), not on features. You can host multiple domains, multiple mailboxes, multiple aliases, individual login per mailbox, TLS connections, IMAP/SMTP/POP/webmail and all the features you can think of.