所有子域名的单个MX记录（gsuite）

要获取所有子域名的单个MX记录，您可以使用Python编程语言和dnspython库来解决这个问题。下面是一个示例代码：

import dns.resolver

def get_mx_records(domain):
    mx_records = []
    try:
        answers = dns.resolver.resolve(domain, 'MX')
        for rdata in answers:
            mx_records.append(str(rdata.exchange))
    except dns.resolver.NoAnswer:
        pass
    return mx_records

def get_all_subdomains(domain):
    subdomains = []
    try:
        answers = dns.resolver.resolve(domain, 'NS')
        for rdata in answers:
            subdomain = str(rdata).split()[0]
            subdomains.append(subdomain)
    except dns.resolver.NoAnswer:
        pass
    return subdomains

def get_all_mx_records(domain):
    all_mx_records = []
    subdomains = get_all_subdomains(domain)
    for subdomain in subdomains:
        mx_records = get_mx_records(subdomain + '.' + domain)
        all_mx_records.extend(mx_records)
    return all_mx_records

# 示例用法
domain = 'yourdomain.com'
mx_records = get_all_mx_records(domain)
for mx_record in mx_records:
    print(mx_record)

该代码使用dns.resolver模块从DNS服务器获取MX记录和NS记录。get_all_subdomains函数获取所有子域名，get_mx_records函数获取单个子域名的MX记录。get_all_mx_records函数使用这两个函数来获取所有子域名的MX记录，并返回一个列表。

请将yourdomain.com替换为您要查询的实际域名。运行示例代码将打印出所有子域名的单个MX记录。