export interface SendingAccount {
    email: string;
    password: string;
    server: string;
}
/**
 * Check if a sending account is configured (non-interactive, for display/guard checks).
 */
export declare function hasSendingAccount(): boolean;
/**
 * Get the configured sending account. Returns null if not configured.
 * Use this for non-interactive contexts (MCP tools, --json mode, monitors).
 */
export declare function getSendingAccountSync(): SendingAccount | null;
/**
 * Get sending account — prompts user to pick one if not configured.
 * This is the main function commands should call.
 *
 * Flow:
 * 1. If already configured in config → return it
 * 2. If DA API configured → list accounts, let user pick, ask password, save
 * 3. If no DA API → ask for email + password manually, save
 */
export declare function getSendingAccount(): Promise<SendingAccount>;