i use racknerd and mailinabox. 3 years rock solid. no fuss. i just have 1 mail@domain.ext email id that i use everywhere. everyone is logged in to that email

i use racknerd and mailinabox. 3 years rock solid. no fuss. i just have 1 mail@domain.ext email id that i use everywhere. everyone is logged in to that email i use backblaze b2 for backups which are taken automatically. this costs me something stupid, like $15/year for vps and $12/year for domain if i remember correctly. have to occasionally update the server by ssh which takes 5 minutes every 6-10 months.