企业邮域名被琐定

import dns.resolver

def check_dns_config(domain):
    try:
        mx_records = dns.resolver.resolve(domain, 'MX')
        for mx in mx_records:
            print(f'MX Record: {mx.exchange}')
        spf_record = dns.resolver.resolve(domain, 'TXT')
        for txt in spf_record:
            if 'v=spf1' in txt.strings[0].decode():
                print('SPF Record is configured correctly.')
            else:
                print('SPF Record is not configured correctly.')
    except dns.resolver.NXDOMAIN:
        print('Domain does not exist.')
    except dns.resolver.NoAnswer:
        print('DNS query did not receive an answer.')
    except dns.resolver.Timeout:
        print('DNS query timed out.')

# 使用示例
check_dns_config('example.com')