import { Transporter } from 'nodemailer';
import { SESClient } from '@aws-sdk/client-ses';
import { EmailProviderConfig, SmtpConfig, SendGridConfig, SesConfig } from '../interfaces/email-options.interface';
/**
 * Factory for creating email provider configurations
 */
export declare class ProviderFactory {
    /**
     * Create SMTP transporter
     */
    static createSmtpTransporter(config: SmtpConfig): Transporter;
    /**
     * Configure SendGrid
     */
    static configureSendGrid(config: SendGridConfig): void;
    /**
     * Create AWS SES client
     */
    static createSesClient(config: SesConfig): SESClient;
    /**
     * Create provider configuration from legacy SMTP config
     */
    static createProviderConfig(config: SmtpConfig | EmailProviderConfig): EmailProviderConfig;
    /**
     * Validate provider configuration
     */
    static validateProviderConfig(config: EmailProviderConfig): void;
}
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