python邮箱验证

Ⅰ python smtp邮件发送失败怎么办

以下代码调试通过：

#coding:utf-8
importsmtplib
fromemail.mime.textimportMIMEText
fromemail.headerimportHeader

sender='[email protected]'
receiver='[email protected]'
subject='pythonemailtest'
smtpserver='smtp.139.com'
username='[email protected]'
password='xxxxxx'

msg=MIMEText('你好','text','utf-8')#中文需参数‘utf-8'，单字节字符不需要
msg['Subject']=Header(subject,'utf-8')

smtp=smtplib.SMTP()
smtp.connect('smtp.139.com')
smtp.login(username,password)
smtp.sendmail(sender,receiver,msg.as_string())
smtp.quit()

运行效果：