import type { EmailConfig, EmailAccountConfig, ResolvedEmailAccount, A2AConfig } from "./types.js";
import type { EmailLogger } from "./utils/logger.js";
/**
 * List all email account IDs
 */
export declare function listEmailAccountIds(cfg: EmailConfig | {
    channels?: {
        email?: EmailConfig;
    };
}): string[];
/**
 * Resolve default email account ID
 */
export declare function resolveDefaultEmailAccountId(cfg: EmailConfig | {
    channels?: {
        email?: EmailConfig;
    };
}): string;
/**
 * Extract domain from email address
 */
export declare function extractDomain(email: string): string;
/**
 * Derive IMAP host from domain
 */
export declare function deriveImapHost(domain: string): string;
/**
 * Derive SMTP host from domain
 */
export declare function deriveSmtpHost(domain: string): string;
/**
 * Resolve email account configuration
 */
export declare function resolveEmailAccount(params: {
    cfg: {
        channels?: {
            email?: EmailConfig;
        };
    };
    accountId?: string | null;
    log?: EmailLogger;
}): ResolvedEmailAccount;
/**
 * Get account config helper
 */
export declare function getEmailAccountConfig(params: {
    cfg: {
        channels?: {
            email?: EmailConfig;
        };
    };
    accountId: string;
}): EmailAccountConfig | undefined;
/**
 * Apply email account configuration from CLI setup
 *
 * ALL accounts (including default) write to accounts[accountId]
 */
export declare function applyEmailAccountConfig(cfg: any, accountId: string, input: {
    email?: string;
    password?: string;
    apiKey?: string;
}): any;
/**
 * Resolve A2A configuration from email config
 */
export declare function resolveA2AConfig(emailConfig?: EmailConfig, log?: EmailLogger): A2AConfig;