email-validator-ultimate/src/utils/format.ts

Advanced email validator ultimate library for Node.js. Includes format checks, MX records, SMTP inbox validation, disposable email detection, and quality scoring. email validation email validator

export function isValidFormat(email: string): boolean {
  const regex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
  return regex.test(email);
}