SMTP操作使用详解并通过python进行smtp邮件发送示例

3.1. 安装smtplib和email模块
pip install smtplib
pip install email

# -*- coding: utf-8 -*-
# 从17280xxxxx@qq.com向zjxwxxxx@outlook.com发送一封邮件
# 注意, 此处要填写你自己正确的邮件地址
import smtplib
from email.header import Header
from email.mime.text import MIMEText
fromAddr ='17****1@163.com'   # 发送邮件地址
password = 'GXKLZMSNHOMPDVXH'   # SMTP服务的密码, 就是上述图中的授权码
toAddr = '1****5@163.com'    # 目的邮件地址
subject = 'SMTP send mail'         # 邮件标题
content = 'python send mail,very goode'            # 邮件内容
def makeMail():
    mail = MIMEText(content, 'plain', 'utf-8')      # 使用MIMEText()构造一个文本格式的邮件
    mail['From'] = Header(fromAddr, 'utf-8')        # 构造邮件头From
    mail['To'] = Header(toAddr, 'utf-8')            # 构造邮件头To
    mail['Subject'] = Header(subject, 'utf-8')      # 构造邮件主题
    return mail
def sendMail(mail):
    # smtp= smtplib.SMTP()                        # 创建SMTP实例
    # smtp.connect('smtp.qq.com')                 # 连接SMTP服务器
    smtp = smtplib.SMTP_SSL("smtp.163.com")        # 此处直接一步到位
    smtp.login(fromAddr, password)                # 登录SMTP服务
    smtp.sendmail(fromAddr, toAddr, mail.as_string())    # 通过SMTP服务器发送邮件
    smtp.quit()
sendMail(makeMail())
print('success')

import smtplib
from email.mime.text import MIMEText
from email.header import Header
sender = 'xxxx@qq.com' #发件邮箱
passwd = 'lkugmgywydhfff' #发送人邮箱授权码
receivers = 'xxxx@qq.com'   #收件邮箱
subject = 'python发邮Html邮件测试' #主题
content = """         #内容，HTML格式
<p>Python 邮件发送测试...</p>
<p><a href="http://www.baidu.com">这是一个链接</a></p>
"""
msg = MIMEText(content,'html','utf-8')
# msg['Subject'] = subject
msg['Subject'] = Header(subject,'utf-8')
# msg['From'] = sender
msg['From'] = Header('大傻子','utf-8')
# msg['To'] = receivers
msg['To'] = Header('二愣子','utf-8')
try:
    s = smtplib.SMTP_SSL('smtp.qq.com',465)
    s.login(sender,passwd)
    s.sendmail(sender,receivers,msg.as_string())
    print('Send Success')
except:
    print('Send Failure')

import smtplib
from email.mime.image import MIMEImage
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
sender = 'xxxx@qq.com'
passwd = 'lkugmgywydhfff'
receivers = 'xxxx@qq.com'
subject = 'python发邮带img的邮件测试' #主题
# 创建一个带附件的实例
msg = MIMEMultipart()
msg['Subject'] = subject
msg['From'] = sender
msg['To'] = receivers
# 创建正文
msg.attach(MIMEText('使用python smtplib模块和email模块自动发送邮件测试','plain','utf-8'))
# 创建图片附件
import os
img_file = open(os.getcwd()+"/a4.jpg",'rb').read()
msg_img = MIMEImage(img_file)
msg_img.add_header('Content-Disposition','attachment', filename = "a4.jpg")
msg_img.add_header('Content-ID', '<0>')
msg.attach(msg_img)
try:
    s = smtplib.SMTP_SSL('smtp.qq.com',465)
    s.set_debuglevel(1) #输出发送邮件详细过程
    s.login(sender,passwd)
    s.sendmail(sender,receivers,msg.as_string())
    print('Send Succese')
except:
    print('Send Failure')
3.5

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.header import Header
sender = 'xxxxxx@qq.com'  #发件邮箱
passwd = 'lkugmgywydhfff'  # 邮箱授权码
receivers = 'xxxxxx@qq.com'  #收件邮箱
subject = 'python发带附件的邮件测试' #主题
# 创建一个带附件的实例
msg = MIMEMultipart()
msg['Subject'] = subject
msg['From'] = sender
msg['To'] = receivers
#创建正文，将文本文件添加到MIMEMultipart中
msg.attach(MIMEText('使用python smtplib模块和email模块自动发送邮件测试','plain','utf-8'))
#构造附件1，传送当前目录下  文件
att1 = MIMEText(open('testdata.xlsx','rb').read(),'base64','utf-8') # rb以二进制方式读取
# att1["Content-Type"] = 'application/octet-stream'
# filename为附件名称，可以任意写，写什么名字，邮件中显示什么名字
att1["Content-Disposition"] = 'attachment; filename = "testdata.xlsx" '
#将附件添加到MIMEMultipart中
msg.attach(att1)
#构造附件2
att2 = MIMEText(open('db.cfg','rb').read(),'base64','utf-8')
# att2["Content-Type"] = 'application/octet-stream'
att2["Content-Disposition"] = 'attachment; filename = "db.cfg" '
#将附件添加到MIMEMultipart中
msg.attach(att2)
try:
    s = smtplib.SMTP_SSL('smtp.qq.com',465)
    s.set_debuglevel(1) #输出发送邮件详细过程
    s.login(sender,passwd)
    s.sendmail(sender,receivers,msg.as_string())
    print('Send Succese')
except:
    print('Send Failure')

s = smtplib.SMTP(邮件服务地址，端口号)
　　s = smtplib.SMTP_SSL(邮件服务地址，端口号)

s.login(用户名，密码)

s.close()

from email.mime.text import MIMEText
　　from email.mime.image import MIMEImage
　　from email.mime.multipart import MIMEMultipart

MIMEText(msg,type,chartset)
 　msg：文本内容
 　type：文本类型默认为plain（纯文本）
 　## 发送HTML格式的时候，修改为html，但同时要求msg的内容也是html的格式。
 　chartset：文本编码，中文为“utf-8”
 　# 构造TEXT格式的消息
 　msg = MIMEText("hello.text","plain","utf-8")
 　msg["Subject"] = "xxxxx"
 　msg["From"] = "xxxx"
 　msg["To"] = "xxxx"
 　#发送以上构造的邮件内容要使用as_string将构造的邮件内容转换为string形式。
 　s.sendmail("xxx","xxx",msg.as_string)

msg = MIMEMultipart()
 　#实例化一个文本对象 
 　msg_sub = MIMEText("hello.text","plain","utf-8")
 　#将text消息添加到MIMEMultipart中，作为邮件正文。
 　msg.attach(msg_sub)
 
 　#图片作为附件
 　import os
 　img_datas = open(os.getcwd()+ "/reports/xxxx.png","rb").read()
 　msg_img = MIMEImage(img_data)
 　msg_img.add_header('Content-Disposition','attachment', filename = "xxxx.png" )
 　msg_img.add_header('Content-ID','<0>')
 　#将图片添加到MIMEMultiplart中，作为附件发送。
 　msg.attach(mag_img)