import { AbstractIntegration } from "./abstract.integration";
import type { ILoggerService, IDiscoveryService, IMailIntegration, NMailIntegration } from "../..";
export declare class MailIntegration extends AbstractIntegration implements IMailIntegration {
    protected readonly _discoveryService: IDiscoveryService;
    protected readonly _loggerService: ILoggerService;
    protected readonly _INTEGRATION_NAME: string;
    private _config;
    private _transport;
    constructor(_discoveryService: IDiscoveryService, _loggerService: ILoggerService);
    private _setConfig;
    init(): Promise<boolean>;
    private _createTransport;
    destroy(): Promise<void>;
    sendMailWithDynamicSender(mail: NMailIntegration.DynamicMail, options?: NMailIntegration.Options): Promise<void>;
    sendMailWithStaticSender(mail: NMailIntegration.StaticMail, options?: NMailIntegration.Options): Promise<void>;
    private _sendMail;
    private _throwConfigError;
}