That works! I’ve seen it before but not super familiar - is it a paid service? (Not that it matters all that much).
Do you have a website for your business? Most legit would be to have something like [email protected]
Here’s how to set the DNS if so:
https://easydns.com/blog/2023/03/12/easynostr-setup-your-nip-05-id-under-your-own-domain-or-use-one-of-ours/