import { type VerificationResult, type VerifyEmailParams } from './types';
/** Per-MX-domain port overrides — picked when no explicit `smtpPort` was passed. */
export declare const domainPorts: Record<string, number>;
/**
 * Verify an email address — orchestrates format / disposable / free / MX / SMTP /
 * WHOIS / name-detection / domain-suggestion checks. Each helper below owns one
 * step and runs only when its flag is enabled. Early returns short-circuit on
 * format/domain failures.
 */
export declare function verifyEmail(params: VerifyEmailParams): Promise<VerificationResult>;