export declare type MXResponse = {
    exchange: string;
    priority: number;
};
export declare const resolveIp4: (domain: any) => Promise<string[]>;
export declare const resolveCname: (domain: any) => Promise<string[]>;
export declare const resolveMx: (domain: any) => Promise<MXResponse[]>;
export declare const resolveTxt: (domain: any) => Promise<string[]>;