import { MailClient } from "@clawemail/node-sdk";
import type { ParsedEmail } from "../types.js";
import type { EmailLogger } from "../utils/logger.js";
/**
 * Parse a raw RFC 5322 header string into a key→value record.
 * Keys are lowercased. Multi-line folded values are unfolded.
 */
export declare function parseHeaderRaw(headerRaw: string): Record<string, string>;
/**
 * Fetch and parse an email by mailId using the SDK.
 * Marks the email as read during the read call.
 */
export declare function fetchEmailById(params: {
    mailId: string;
    client: MailClient;
    log?: EmailLogger;
}): Promise<ParsedEmail>;