Python通过代理发送附件邮件

本文将详细介绍如何使用Python通过代理发送附件邮件。

一、安装必要的库

发送邮件需要使用smtplib库，所以首先需要安装这个库。

$ pip install smtplib

如果需要使用代理服务器发送邮件，还需要安装requests库。

$ pip install requests

二、导入所需模块

使用Python发送邮件需要导入smtplib和email模块。

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.application import MIMEApplication

三、设置邮件内容

创建一个邮件对象，并设置邮件的发送者、接收者、主题、正文等相关属性。

def send_email(sender, receiver, subject, message, attachment):
    msg = MIMEMultipart()
    msg['From'] = sender
    msg['To'] = receiver
    msg['Subject'] = subject

    body = MIMEText(message, 'plain')
    msg.attach(body)

    with open(attachment, 'rb') as f:
        attach = MIMEApplication(f.read())
        attach.add_header('Content-Disposition', 'attachment', filename=attachment)
        msg.attach(attach)

四、发送邮件

通过SMTP服务器发送邮件需要提供SMTP服务器地址和端口号，以及发送者的用户名和密码。

def send_email(sender, receiver, subject, message, attachment):
    # ...

    server = smtplib.SMTP('smtp.example.com', 587)
    server.starttls()
    server.login(sender, 'password')
    server.send_message(msg)
    server.quit()

五、通过代理发送邮件

如果需要使用代理服务器发送邮件，可以使用requests库来设置代理。

import requests

def send_email(sender, receiver, subject, message, attachment):
    # ...

    proxies = {'http': 'http://proxy.example.com:8080', 'https': 'http://proxy.example.com:8080'}
    session = requests.Session()
    session.proxies = proxies

    server = smtplib.SMTP('smtp.example.com', 587)
    server.starttls()
    server.login(sender, 'password')
    server.send_message(msg)
    server.quit()

六、完整示例

以下是一个完整的示例，展示了如何使用Python通过代理发送带附件的邮件。

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.application import MIMEApplication

def send_email(sender, receiver, subject, message, attachment):
    msg = MIMEMultipart()
    msg['From'] = sender
    msg['To'] = receiver
    msg['Subject'] = subject

    body = MIMEText(message, 'plain')
    msg.attach(body)

    with open(attachment, 'rb') as f:
        attach = MIMEApplication(f.read())
        attach.add_header('Content-Disposition', 'attachment', filename=attachment)
        msg.attach(attach)

    server = smtplib.SMTP('smtp.example.com', 587)
    server.starttls()
    server.login(sender, 'password')
    server.send_message(msg)
    server.quit()

if __name__ == '__main__':
    sender = 'sender@example.com'
    receiver = 'receiver@example.com'
    subject = '测试邮件'
    message = '这是一封测试邮件，请查收。'
    attachment = 'attachment.txt'

    send_email(sender, receiver, subject, message, attachment)

通过以上步骤，你就可以使用Python通过代理发送附件邮件了。