Found a review of iCloud's custom domain: https://medium.com/empty-coffee/three-months-with-apple-icloud-mails-custom-domains-e988fec4838a https://medium.com/em

Found a review of iCloud's custom domain: https://medium.com/empty-coffee/three-months-with-apple-icloud-mails-custom-domains-e988fec4838a https://medium.com/empty-coffee/three-months-with-apple-iclo... TL; DR: Seems to work BUT may have issues with SPF/DKIM etc. Looking for anyone else on HN to chime in with their experience using iCloud custom domains.