One of the lesser known features of iCloud Plus (Paid iCloud plans) is to manager email inside Apple Mail. If you pay for iCloud storage which stats at 50GB a month or 1.5 Aud a month, you get iCloud plus.
iCloud+ with custom email domain allows 5 custom domains connected per person in the family group and you can have 3 different email address per domain per person. Yes the amount of email address is quite low per domain however it’s a great solution for low email needs.
You will need to go to iCloud.com and add a custom domain in your iCloud+ features tab. You will then need to make changes at your domain provider which is simple enough. Once done, you can add the email address for those custom domains and you will receive them in Apple Mail.
So if you have low email needs, it might be worth checking out this solution instead of paying for another service.
iVikrant 