我正在尝试检查一个域名是否有MX记录解析使用dnspython模块。我得到了以下错误，而连接到mx记录服务器。谁能解释一下为什么我面临这个问题？

Traceback (most recent call last):
  File "c:\Users\iamfa\OneDrive\Desktop\test\email_mx.py", line 26, in <module>
    dns.resolver.resolve("cmrit.ac.in", 'MX')
  File "c:\Users\iamfa\OneDrive\Desktop\test\env1\lib\site-packages\dns\resolver.py", line 1193, in resolve
    return get_default_resolver().resolve(qname, rdtype, rdclass, tcp, source,
  File "c:\Users\iamfa\OneDrive\Desktop\test\env1\lib\site-packages\dns\resolver.py", line 1066, in resolve
    timeout = self._compute_timeout(start, lifetime,
  File "c:\Users\iamfa\OneDrive\Desktop\test\env1\lib\site-packages\dns\resolver.py", line 879, in _compute_timeout
    raise LifetimeTimeout(timeout=duration, errors=errors)
dns.resolver.LifetimeTimeout: The resolution lifetime expired after 5.001 seconds: Server 10.24.0.1 UDP port 53 answered The DNS operation timed out.; Server 198.51.100.1 UDP port 53 answered The DNS operation timed out.; Server 10.95.11.110 UDP port 53 answered The DNS operation timed out.

这是我的代码：

import dns.resolver
 if dns.resolver.resolve("cmrit.ac.in", 'MX'):
    print(True)
 else:
    print(False)

然而，直到昨天它还工作得很好，但当我今天尝试运行相同的代码时，我面临着这个问题。