import { Mailable } from '../Mailable.mjs';
import { MailerProvider } from '../MailerProvider.mjs';

/**
 * Configuration options for the MailgunProvider.
 */
type MailgunProviderConfig = {
    /** Mailgun API key */
    api_key: string;
    /** Mailgun domain */
    domain: string;
    /** Default sender email address */
    default_from: string;
    /** Use EU servers (default: false) */
    eu?: boolean;
};
/**
 * Mailer provider that sends emails via Mailgun API.
 * Supports both US and EU Mailgun servers.
 * API key and domain can be provided via configuration or environment variables.
 */
declare class MailgunProvider implements MailerProvider {
    private defaultFrom;
    private apiKey;
    private domain;
    private baseUrl;
    /**
     * Creates a new MailgunProvider instance.
     * @param options - Provider configuration options
     */
    constructor(options?: Partial<MailgunProviderConfig>);
    /**
     * Sets the default sender email address.
     * @param from - The default sender email address
     */
    setDefaultFrom(from: string): void;
    /**
     * Sends an email via Mailgun API.
     * @param mail - The email message to send
     * @throws Error if the Mailgun API request fails
     */
    sendMail(mail: Mailable): Promise<void>;
}

export { MailgunProvider, type MailgunProviderConfig };