import type { BulkSendOptions, BulkSendResult, Mailer, MailerHookContext, MailerHooks, MailOptions, MailPlugin, SendResult, Transport, TransportMailerOptions, VerifyResult } from "./core/types.js";
export type { MailerHookContext, MailerHooks, TransportMailerOptions };
/**
 * Create a mailer that wraps a custom {@link Transport} (HTTP API, preview, retry, etc.).
 */
export declare function createMailer(options: TransportMailerOptions): Promise<Mailer>;
/** Internal mailer implementation shared with the full `sently` entry. */
export declare class MailerImpl implements Mailer {
    private readonly transport;
    private readonly plugins;
    private readonly hooks?;
    constructor(transport: Transport, plugins?: MailPlugin[], hooks?: MailerHooks | undefined);
    send(options: MailOptions): Promise<SendResult>;
    private processMessage;
    sendBulk(messages: MailOptions[], options?: BulkSendOptions): Promise<BulkSendResult>;
    verify(): Promise<VerifyResult>;
    close(): Promise<void>;
}