學過計算機網路的都知道，SMTP是應用層中用於郵件傳輸的一條協議，

他在python中的運用如下首先需要匯入smtplib的包

例子程式碼如下：

import smtplib
from email.mime.text import MIMEText
from email.header import Header
 
# 第三方 SMTP 服務
mail_host="smtp.XXX.com"  #設定伺服器
mail_user="XXXX"    #使用者名稱
mail_pass="XXXXXX"   #口令 
 
 
sender = '[email protected]'
receivers 
 
= ['[email protected]']  # 接收郵件，可設定為你的QQ郵箱或者其他郵箱
 
message = MIMEText('Python 郵件傳送測試...', 'plain', 'utf-8')
message['From'] = Header("菜鳥教程", 'utf-8')
message['To'] =  Header("測試", 'utf-8')
 
subject = 'Python SMTP 郵件測試'
message['Subject'] = Header(subject, 'utf-8')
 
 
try:
    smtpObj = smtplib.SMTP() 
    smtpObj.connect(mail_host, 
 
25)    # 25 為 SMTP 埠號
    smtpObj.login(mail_user,mail_pass)  
    smtpObj.sendmail(sender, receivers, message.as_string())
    print "郵件傳送成功"
except smtplib.SMTPException:
    print "Error: 無法傳送郵件"