interface DnsRecord {
    type: string;
    value: string;
    priority?: number;
    weight?: number;
    port?: number;
    ttl?: number;
}
interface EmailSecurityResult {
    domain: string;
    spf: {
        found: boolean;
        record?: string;
        policy?: string;
        includes?: string[];
        risk: string;
    };
    dmarc: {
        found: boolean;
        record?: string;
        policy?: string;
        subdomain_policy?: string;
        rua?: string;
        risk: string;
    };
    dkim: {
        selector: string;
        found: boolean;
        record?: string;
        keySize?: string;
    }[];
    overallRisk: "low" | "medium" | "high" | "critical";
    recommendations: string[];
}
interface SpfChainNode {
    domain: string;
    depth: number;
    mechanisms: string[];
    includes: string[];
    ipRanges: string[];
}
interface SpfChainResult {
    domain: string;
    chainDepth: number;
    totalLookups: number;
    lookupLimit: number;
    chain: SpfChainNode[];
    allIpRanges: string[];
    services: string[];
    exceedsLimit: boolean;
}
interface SrvRecord {
    name: string;
    target: string;
    port: number;
    priority: number;
    weight: number;
}
interface CnameRecord {
    name: string;
    target: string;
}
interface SrvDiscoverResult {
    domain: string;
    srvRecords: SrvRecord[];
    cnameRecords: CnameRecord[];
}
interface WildcardCheckResult {
    domain: string;
    wildcard: boolean;
    testSubdomain: string;
    resolvedIps?: string[];
}
export declare function dnsLookup(domain: string, type: string): Promise<DnsRecord[]>;
export declare function dnsReverse(ip: string): Promise<string[]>;
export declare function dnsEmailSecurity(domain: string, dkimSelectors?: string[]): Promise<EmailSecurityResult>;
export declare function dnsSpfChain(domain: string, maxDepth?: number): Promise<SpfChainResult>;
export declare function dnsSrvDiscover(domain: string): Promise<SrvDiscoverResult>;
export declare function dnsWildcardCheck(domain: string): Promise<WildcardCheckResult>;
export {};
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