python smtp 发送邮件 [WinError 10060] A connection attempt failed … has failed to respond

本文关键字: email, python, SMTP

在ASW上部署了一个数据监控系统，但是SMTP发送邮件提示

[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 has failed to respond

发送邮件在本地是正常发送的，所以考虑是ip白名单或者端口的问题。

解决方案：修改25端口到465

smtpObj = smtplib.SMTP()
smtpObj = smtplib.SMTP_SSL(mail_host)  # 此段代码表示使用ssl协议，163邮箱用465或994端口，否则用25端口

# 设置发件人邮箱的域名和端口，端口地址为25
smtpObj.connect(mail_host, 465)