[abofh]

I've done similar with AWS's SES before with no trouble - I imagine you'd have similar results with MSFT.

[uuyi]

I’ve had severe deliverability issues with SES. You’re pooled with a lot of bad actors and occasionally you get a blacklisted outbound. They have a reputation system but it’s far from perfect and requires manual intervention if you’re blocked from sending which is a real pain.

For personal stuff I’m using iCloud+ domain hosting now after moving from fastmail which was also trouble free.