I have two custom domains for email. Used Fastmail for them for several years, but now have both in iCloud Mail through the custom domains support that comes wi

I have two custom domains for email. Used Fastmail for them for several years, but now have both in iCloud Mail through the custom domains support that comes with Apple’s iCloud+ product. This support was pretty rough-edged a year ago, but has improved sufficiently that it’s now worth saving the $50/year for Fastmail (one domain was only an alias, so I didn’t have to pay for two accounts).