SMTP发送邮件_牛客博客

# 1 发送文本邮件
#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from email import encoders
from email.header import Header
from email.mime.text import MIMEText
from email.utils import parseaddr, formataddr
import smtplib

def _format_addr(s):
    name, addr = parseaddr(s)
    return formataddr((Header(name, 'utf-8').encode(), addr))

from_addr = input('From: ')
password = input('Password: ')
to_addr = input('To: ')
smtp_server = input('SMTP server: ')

msg = MIMEText('hello, send by Python...', 'plain', 'utf-8')
msg['From'] = _format_addr('Python爱好者 <%s>' % from_addr)
msg['To'] = _format_addr('管理员 <%s>' % to_addr)
msg['Subject'] = Header('来自SMTP的问候……', 'utf-8').encode()

server = smtplib.SMTP(smtp_server, 25)
server.set_debuglevel(1)
server.login(from_addr, password)
server.sendmail(from_addr, [to_addr], msg.as_string())
server.quit()

# 2 发送HTML邮件
#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from email import encoders
from email.header import Header
from email.mime.text import MIMEText
from email.utils import parseaddr, formataddr
import smtplib

def _format_addr(s):
    name, addr = parseaddr(s)
    return formataddr((Header(name, 'utf-8').encode(), addr))

from_addr = input('From: ')
password = input('Password: ')
to_addr = input('To: ')
smtp_server = input('SMTP server: ')

msg = MIMEText('<html><body><h1>Hello</h1>' +
    '<p>send by <a href="http://www.python.org">Python</a>...</p>' +
    '</body></html>', 'html', 'utf-8')
msg['From'] = _format_addr('Python爱好者 <%s>' % from_addr)
msg['To'] = _format_addr('管理员 <%s>' % to_addr)
msg['Subject'] = Header('来自SMTP的问候……', 'utf-8').encode()

server = smtplib.SMTP(smtp_server, 25)
server.set_debuglevel(1)
server.login(from_addr, password)
server.sendmail(from_addr, [to_addr], msg.as_string())
server.quit()

# 3 发送附件
#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from email import encoders
from email.header import Header
from email.mime.text import MIMEText
from email.utils import parseaddr, formataddr
from email.mime.base import MIMEBase
from email.mime.multipart import MIMEMultipart
import smtplib

def _format_addr(s):
    name, addr = parseaddr(s)
    return formataddr((Header(name, 'utf-8').encode(), addr))

from_addr = input('From: ')
password = input('Password: ')
to_addr = input('To: ')
smtp_server = input('SMTP server: ')

msg = MIMEMultipart()
msg['From'] = _format_addr('Python爱好者 <%s>' % from_addr)
msg['To'] = _format_addr('管理员 <%s>' % to_addr)
msg['Subject'] = Header('来自SMTP的问候……', 'utf-8').encode()

# 邮件正文是MIMEText:
msg.attach(MIMEText('send with file...', 'plain', 'utf-8'))

# 添加附件就是加上一个MIMEBase，从本地读取一个图片:
with open('D:\\桌面壁纸\\86044.jpg', 'rb') as f:
    # 设置附件的MIME和文件名，这里是png类型:
    mime = MIMEBase('image', 'jpg', filename='test.jpg')
    # 加上必要的头信息:
    mime.add_header('Content-Disposition', 'attachment', filename='test.jpg')
    mime.add_header('Content-ID', '<0>')
    mime.add_header('X-Attachment-Id', '0')
    # 把附件的内容读进来:
    mime.set_payload(f.read())
    # 用Base64编码:
    encoders.encode_base64(mime)
    # 添加到MIMEMultipart:
    msg.attach(mime)

server = smtplib.SMTP(smtp_server, 25)
server.set_debuglevel(1)
server.login(from_addr, password)
server.sendmail(from_addr, [to_addr], msg.as_string())
server.quit()

# 4 发送图片
#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from email import encoders
from email.header import Header
from email.mime.text import MIMEText
from email.utils import parseaddr, formataddr
from email.mime.base import MIMEBase
from email.mime.multipart import MIMEMultipart
import smtplib

def _format_addr(s):
    name, addr = parseaddr(s)
    return formataddr((Header(name, 'utf-8').encode(), addr))

from_addr = input('From: ')
password = input('Password: ')
to_addr = input('To: ')
smtp_server = input('SMTP server: ')

msg = MIMEMultipart()
msg['From'] = _format_addr('Python爱好者 <%s>' % from_addr)
msg['To'] = _format_addr('管理员 <%s>' % to_addr)
msg['Subject'] = Header('来自SMTP的问候……', 'utf-8').encode()

# 邮件正文是MIMEText:
msg.attach(MIMEText('<html><body><h1>Hello</h1>' +
    '<p><img src="cid:0"></p>' +
    '</body></html>', 'html', 'utf-8'))

# 添加附件就是加上一个MIMEBase，从本地读取一个图片:
with open('D:\\桌面壁纸\\86044.jpg', 'rb') as f:
    # 设置附件的MIME和文件名，这里是png类型:
    mime = MIMEBase('image', 'jpg', filename='test.jpg')
    # 加上必要的头信息:
    mime.add_header('Content-Disposition', 'attachment', filename='test.jpg')
    mime.add_header('Content-ID', '<0>')
    mime.add_header('X-Attachment-Id', '0')
    # 把附件的内容读进来:
    mime.set_payload(f.read())
    # 用Base64编码:
    encoders.encode_base64(mime)
    # 添加到MIMEMultipart:
    msg.attach(mime)

server = smtplib.SMTP(smtp_server, 25)
server.set_debuglevel(1)
server.login(from_addr, password)
server.sendmail(from_addr, [to_addr], msg.as_string())
server.quit()

# 5 同时支持HTML和Plain格式
#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from email import encoders
from email.header import Header
from email.mime.text import MIMEText
from email.utils import parseaddr, formataddr
from email.mime.base import MIMEBase
from email.mime.multipart import MIMEMultipart
import smtplib

def _format_addr(s):
    name, addr = parseaddr(s)
    return formataddr((Header(name, 'utf-8').encode(), addr))

from_addr = input('From: ')
password = input('Password: ')
to_addr = input('To: ')
smtp_server = input('SMTP server: ')

msg = MIMEMultipart('alternative')
msg['From'] = _format_addr('Python爱好者 <%s>' % from_addr)
msg['To'] = _format_addr('管理员 <%s>' % to_addr)
msg['Subject'] = Header('来自SMTP的问候……', 'utf-8').encode()

# 邮件正文是MIMEText:
msg.attach(MIMEText('hello', 'plain', 'utf-8'))
msg.attach(MIMEText('<html><body><h1>Hello</h1></body></html>', 'html', 'utf-8'))

# 添加附件就是加上一个MIMEBase，从本地读取一个图片:
with open('D:\\桌面壁纸\\86044.jpg', 'rb') as f:
    # 设置附件的MIME和文件名，这里是png类型:
    mime = MIMEBase('image', 'jpg', filename='test.jpg')
    # 加上必要的头信息:
    mime.add_header('Content-Disposition', 'attachment', filename='test.jpg')
    mime.add_header('Content-ID', '<0>')
    mime.add_header('X-Attachment-Id', '0')
    # 把附件的内容读进来:
    mime.set_payload(f.read())
    # 用Base64编码:
    encoders.encode_base64(mime)
    # 添加到MIMEMultipart:
    msg.attach(mime)

server = smtplib.SMTP(smtp_server, 25)
server.set_debuglevel(1)
server.login(from_addr, password)
server.sendmail(from_addr, [to_addr], msg.as_string())
server.quit()

# 6 利用MIMEImage发送图片
#!/usr/bin/python3
# -*-coding:UTF-8-*-
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.image import MIMEImage
from email.header import Header
from email.utils import parseaddr, formataddr
# 先定义署名格式化函数

def _format_addr(s):
    name, addr = parseaddr(s)
    return formataddr((Header(name, 'utf-8').encode(), addr))

# 发送人，接收人
sender = 'xxxxxxxxxx@qq.com'
pwd = 'xxxxxxxxxxxxxxxxx'  # 请自行登陆邮箱打开SMTP服务，会自动生成第三方授权码，不是登陆密码！
receiver = 'xxxxxxxxxx@163.com'

# 格式化的署名和接收人信息
message = MIMEMultipart()
message['From'] = _format_addr('Python爱好者 <%s>' % sender)
message['To'] = _format_addr('管理员 <%s>' % receiver)
message['Subject'] = Header('来自SMTP的问候……', 'utf-8').encode()

message.attach(MIMEText('<html><body>'
                        + '<h1>Hello</h1>'
                        + '<p>礼物<img src="cid:Imgid">'
                        + '</body></html>', 'html', 'utf-8'))

# MIMEImage，只要打开相应图片，再用read()方法读入数据，指明src中的代号是多少，如这里是'Imgid’，在HTML格式里就对应输入。
with open('D:\\桌面壁纸\\86044.jpg', 'rb') as f:
    mime = MIMEImage(f.read())
    mime.add_header('Content-ID', 'Imgid')
    message.attach(mime)

# 发送邮件！
try:
    smtpobj = smtplib.SMTP_SSL('smtp.qq.com', 465)
    smtpobj.login(sender, pwd)
    smtpobj.sendmail(sender, [receiver], message.as_string())
    print('邮件发送成功')
    smtpobj.quit()
except smtplib.SMTPException as e:
    print('邮件发送失败，Case:%s' % e)

注：

如果遇到相关问题，可以进行如下改动：

1. qq邮箱密码换成它提供的16位授权码
2. 端口号改为465
3. smtplib.SMTP改为smtplib.SMTP_SSL
4. SMTP服务器（端口465或587）:smtp.qq.com
5. msg的From、To、Subject不填99%可能被判定为垃圾邮件,注意msg的From、To不会自动填的
6. 例如可以加上:	msg['From'] = sender, msg['To'] = receiver, msg['Subject'] = '来自SMTP的问候……'