Detailed introduction to Python using SMTP to send emails

import smtplib
smtpObj = smtplib.SMTP( [host [, port [, local_hostname]]] )

SMTP.sendmail(from_addr, to_addrs, msg[, mail_options, rcpt_options]

#!/usr/bin/pythonimport smtplib

sender = &#39;from@fromdomain.com&#39;receivers = [&#39;to@todomain.com&#39;]message = """From: From Person <from@fromdomain.com>
To: To Person <to@todomain.com>
Subject: SMTP e-mail test

This is a test e-mail message.
"""try:
   smtpObj = smtplib.SMTP(&#39;localhost&#39;)
   smtpObj.sendmail(sender, receivers, message)         
   print "Successfully sent email"except SMTPException:
   print "Error: unable to send email"

import smtplib  
from email.mime.text import MIMEText  mailto_list=["YYY@YYY.com"] mail_host="smtp.XXX.com"  #设置服务器mail_user="XXX"    #用户名mail_pass="XXXX"   #口令 mail_postfix="XXX.com"  #发件箱的后缀
  def send_mail(to_list,sub,content):  #to_list：收件人；sub：主题；content：邮件内容
    me="hello"+"<"+mail_user+"@"+mail_postfix+">"   #这里的hello可以任意设置，收到信后，将按照设置显示
    msg = MIMEText(content,_subtype=&#39;html&#39;,_charset=&#39;gb2312&#39;)    #创建一个实例，这里设置为html格式邮件
    msg[&#39;Subject&#39;] = sub    #设置主题
    msg[&#39;From&#39;] = me  
    msg[&#39;To&#39;] = ";".join(to_list)  
    try:  
        s = smtplib.SMTP()  
        s.connect(mail_host)  #连接smtp服务器
        s.login(mail_user,mail_pass)  #登陆服务器
        s.sendmail(me, to_list, msg.as_string())  #发送邮件
        s.close()  
        return True  
    except Exception, e:  
        print str(e)  
        return False  if __name__ == &#39;__main__&#39;:  
    if send_mail(mailto_list,"hello","<a href=&#39;http://www.cnblogs.com/xiaowuyi&#39;>小五义</a>"):  
        print "发送成功"  
    else:  
        print "发送失败"

#!/usr/bin/pythonimport smtplib

message = """From: From Person <from@fromdomain.com>
To: To Person <to@todomain.com>
MIME-Version: 1.0
Content-type: text/html
Subject: SMTP HTML e-mail test

This is an e-mail message to be sent in HTML format

<b>This is HTML message.</b>
<h1>This is headline.</h1>
"""try:
   smtpObj = smtplib.SMTP(&#39;localhost&#39;)
   smtpObj.sendmail(sender, receivers, message)         
   print "Successfully sent email"except SMTPException:
   print "Error: unable to send email"

from email.mime.text import MIMETextfrom email.mime.multipart import MIMEMultipartimport smtplib#创建一个带附件的实例msg = MIMEMultipart()#构造附件1att1 = MIMEText(open('d:\\123.rar', 'rb').read(), 'base64', 'gb2312')att1["Content-Type"] = 'application/octet-stream'att1["Content-Disposition"] = 'attachment; filename="123.doc"'#这里的filename可以任意写，写什么名字，邮件中显示什么名字msg.attach(att1)#构造附件2att2 = MIMEText(open('d:\\123.txt', 'rb').read(), 'base64', 'gb2312')att2["Content-Type"] = 'application/octet-stream'att2["Content-Disposition"] = 'attachment; filename="123.txt"'msg.attach(att2)#加邮件头msg['to'] = 'YYY@YYY.com'msg['from'] = 'XXX@XXX.com'msg['subject'] = 'hello world'#发送邮件try:
    server = smtplib.SMTP()
    server.connect('smtp.XXX.com')
    server.login('XXX','XXXXX')#XXX为用户名，XXXXX为密码
    server.sendmail(msg['from'], msg['to'],msg.as_string())
    server.quit()
    print '发送成功'except Exception, e:  
    print str(e)

#!/usr/bin/pythonimport smtplibimport base64

filename = "/tmp/test.txt"# 读取文件内容并使用 base64 编码fo = open(filename, "rb")filecontent = fo.read()encodedcontent = base64.b64encode(filecontent)  # base64sender = 'webmaster@tutorialpoint.com'reciever = 'amrood.admin@gmail.com'marker = "AUNIQUEMARKER"body ="""
This is a test email to send an attachement.
"""# 定义头部信息part1 = """From: From Person <me@fromdomain.net>
To: To Person <amrood.admin@gmail.com>
Subject: Sending Attachement
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary=%s
--%s
""" % (marker, marker)# 定义消息动作part2 = """Content-Type: text/plain
Content-Transfer-Encoding:8bit

%s
--%s
""" % (body,marker)# 定义附近部分part3 = """Content-Type: multipart/mixed; name=\"%s\"
Content-Transfer-Encoding:base64
Content-Disposition: attachment; filename=%s

%s
--%s--
""" %(filename, filename, encodedcontent, marker)message = part1 + part2 + part3try:
   smtpObj = smtplib.SMTP(&#39;localhost&#39;)
   smtpObj.sendmail(sender, reciever, message)
   print "Successfully sent email"except Exception:
   print "Error: unable to send email"