/**
 * Email DTOs (Data Transfer Objects)
 *
 * Common email data structures for the easy-email library
 */
/**
 * Base email DTO with common email properties
 */
export declare class BaseEmailDto {
    /**
     * Email address of the recipient
     * @example 'recipient@example.com'
     */
    to: string;
    /**
     * Subject line of the email
     * @example 'Important Notification'
     */
    subject: string;
    /**
     * Email address of the sender (optional)
     * @example 'sender@example.com'
     */
    from?: string;
    /**
     * CC recipients (optional)
     * @example ['cc1@example.com', 'cc2@example.com']
     */
    cc?: string[];
    /**
     * BCC recipients (optional)
     * @example ['bcc1@example.com', 'bcc2@example.com']
     */
    bcc?: string[];
    /**
     * Reply-to email address (optional)
     * @example 'reply@example.com'
     */
    replyTo?: string;
}
/**
 * DTO for plain text emails
 */
export declare class TextEmailDto extends BaseEmailDto {
    /**
     * Text content of the email
     * @example 'This is the body of the email message.'
     */
    text: string;
}
/**
 * DTO for HTML emails
 */
export declare class HtmlEmailDto extends BaseEmailDto {
    /**
     * HTML content of the email
     * @example '<h1>Hello</h1><p>This is an HTML email.</p>'
     */
    html: string;
    /**
     * Plain text alternative (optional)
     * @example 'This is the plain text version'
     */
    text?: string;
}
/**
 * DTO for templated emails
 */
export declare class TemplatedEmailDto extends BaseEmailDto {
    /**
     * Email template name or content
     * @example 'welcome-template'
     */
    template: string;
    /**
     * Template context variables
     * @example { name: 'John', company: 'Acme Corp' }
     */
    context?: Record<string, any>;
    /**
     * Template format - 'html' or 'text'
     * @example 'html'
     */
    format?: 'html' | 'text';
}
/**
 * DTO for email with attachments
 */
export declare class EmailWithAttachmentsDto extends BaseEmailDto {
    /**
     * Email content (HTML or text)
     */
    content: string;
    /**
     * Content type - 'html' or 'text'
     * @example 'html'
     */
    contentType: 'html' | 'text';
    /**
     * Email attachments
     */
    attachments?: Array<{
        filename: string;
        content: Buffer | string;
        contentType?: string;
        contentDisposition?: string;
    }>;
}
/**
 * DTO for bulk email sending
 */
export declare class BulkEmailDto {
    /**
     * Array of email DTOs to send
     */
    emails: Array<TextEmailDto | HtmlEmailDto | TemplatedEmailDto | EmailWithAttachmentsDto>;
    /**
     * Delay between emails in milliseconds (optional)
     * @example 1000
     */
    delayBetweenEmails?: number;
    /**
     * Maximum number of emails to send in parallel (optional)
     * @example 5
     */
    maxConcurrent?: number;
}