bot/packages/bot-engine/blocks/inputs/email/formatEmail.ts

const emailRegex =
  /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/

export const formatEmail = (email: string) => {
  if (emailRegex.test(email)) return email.toLowerCase()
}