import { SentlyError } from "../core/errors.js";
import type { MailOptions, SendResult, Transport, VerifyResult } from "../core/types.js";
/** Mailtrap HTTP API configuration. */
export interface MailtrapConfig {
    /** Mailtrap API token for Bearer authentication. */
    apiToken: string;
    /** When true, use the sandbox send endpoint (requires `inboxId`). */
    sandbox?: boolean;
    /** Sandbox inbox ID — required when `sandbox` is true. */
    inboxId?: string;
}
/** Error thrown when the Mailtrap API returns a non-success response. */
export declare class MailtrapError extends SentlyError {
    readonly statusCode: number;
    readonly apiError: unknown;
    /** Creates a Mailtrap API error with status code. */
    constructor(message: string, statusCode: number, apiError: unknown);
}
/**
 * Mailtrap HTTP API transport.
 */
export declare class MailtrapTransport implements Transport {
    readonly provider = "mailtrap";
    private readonly apiToken;
    private readonly sandbox;
    private readonly inboxId?;
    /** Creates a Mailtrap transport with the given API token. */
    constructor(config: MailtrapConfig);
    private sendUrl;
    /** Sends an email via the Mailtrap HTTP API. */
    send(options: MailOptions): Promise<SendResult>;
    /**
     * Returns success without a network call — Mailtrap has no simple verify endpoint.
     */
    verify(): Promise<VerifyResult>;
}