import { Options } from 'nodemailer/lib/mailer';
import { Context } from '../..';
import { Configuration } from '../../configuration';
import { MailSender } from '../mail.sender';
export declare class SmtpSender implements MailSender {
    private readonly configurationProvider;
    private readonly logger;
    constructor(configurationProvider: Configuration);
    send(context: Context, mailOptions: Options): Promise<void>;
}