邮件查域名

import dns.resolver

def query_mx(domain):
    try:
        answers = dns.resolver.resolve(domain, 'MX')
        for rdata in answers:
            print(f'MX Record: {rdata.exchange}')
    except dns.resolver.NXDOMAIN:
        print(f'Domain {domain} does not exist.')
    except dns.resolver.NoAnswer:
        print(f'No MX records found for {domain}.')
    except dns.resolver.Timeout:
        print(f'Timeout while querying MX records for {domain}.')

query_mx('example.com')

import dns.reversename
import dns.resolver

def query_ptr(ip_address):
    try:
        reverse_ip = dns.reversename.from_address(ip_address)
        answers = dns.resolver.resolve(reverse_ip, 'PTR')
        for rdata in answers:
            print(f'PTR Record: {rdata}')
    except dns.resolver.NXDOMAIN:
        print(f'No PTR record found for {ip_address}.')
    except dns.resolver.NoAnswer:
        print(f'No PTR records found for {ip_address}.')
    except dns.resolver.Timeout:
        print(f'Timeout while querying PTR records for {ip_address}.')

query_ptr('8.8.8.8')