Ask HN: How do you handle your emails for custom domains

I use Sendgrid <https://sendgrid.com> with an inbound parse webhook which delivers the emails via LMTP to the inboxes and Dovecot <https://dovecot.org> for reading. If you're sending less than 100 emails/day it's free. It's rock-solid and I've been using it for years without any issues at all. I can highly recommend it. Once you've set it up for one domain, adding more is trivial.

Are you just doing some sort of low-volume "owner@$Domain_Name.$TLD" account for each domain, or do you have a bunch of accounts and/or serious mail volume at many of them?

Exactly! Just low-volume contact@[domain].TLD for each as a placeholder.

I have been a happy Google Workplace user for many many years with my custom domain