import { EntityDict } from '../../oak-app-domain';
import { BRC } from '../../types/RuntimeCxt';
import Email, { EmailOptions } from '../../types/Email';
/**
 * 注入一个其它发送邮件类
 * @param clazz
 */
export declare function registerEmail<ED extends EntityDict>(clazz: new () => Email<ED>): void;
export declare function getEmail<ED extends EntityDict>(origin: string): Email<ED>;
export declare function getOrigin(): string[];
export declare function sendEmail<ED extends EntityDict>(options: EmailOptions, context: BRC<ED>): Promise<{
    success: boolean;
    error?: string | undefined;
} | {
    success: boolean;
    error: unknown;
}>;