For an e-commerce sending domain, a one-step onboarding bundle can simplify setup, but it cannot make DNS and mail verification happen at one instant. A hostname cutover is complete only when deliverability evidence comes from the records that recursive resolvers and receiving systems can actual...
Source: [Dev.to](https://dev.to/valenciamoss6824/nodejs-sending-domain-onboarding-one-bundle-setup-staged-mail-verification-for-cutover-382c)