If you’re self hosting a website, you can follow one of the traditional guides on email forwarding.

For Nostr and LN stuff check out these guides:

NIP-05 setup: https://nvk.org/n00b-nip5

LN forwarding setup: https://guides.getalby.com/overall-guide/alby-lightning-account/where-to-use-your-lightning-address/how-to-use-your-own-domain-in-your-alby-lightning-address