OpenSMTPd + Dovecot is extremely easy to setup and maintain. For my parents, I registered a domain on OVH and they use the free email accounts they come with.

OpenSMTPd + Dovecot is extremely easy to setup and maintain. For my parents, I registered a domain on OVH and they use the free email accounts they come with. So that's an independent, ready to migrate, email account for about 8 euros per year.