WinError 10060 A connection attempt failed because the connected party did not properly respond
问题 I am trying to verify emails by sending requests to SMTP servers. When I test in Linux, it works for 90% of emails. When I test in Windows, I did some analysis and like for 79% of emails will show the WinError10060 problem. I tried using VPN, proxies and even turning off the firewall but the same problem will appear: [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host