import { MailSender, MailSendResponse } from "../Types.mjs";
/**
 * gmx: Zugriff aktivieren: https://hilfe.gmx.net/pop-imap/einschalten.html
 */
export interface SmtpMailSenderOptions {
    host: string;
    port: number;
    user: string;
    password: string;
    defaultReceivers?: string[];
}
export declare class SmtpMailSender implements MailSender {
    constructor(options: SmtpMailSenderOptions);
    private host;
    private port;
    private user;
    private password;
    private transporter;
    private defaultReceivers;
    disconnect: () => Promise<void>;
    send: (subject: string, content: string, to?: string[] | undefined) => Promise<MailSendResponse>;
}