Python邮件发送程序代码

# -*- coding:utf-8 -*-
# 2024-3-4
# Pythonit教程网：blog.pythonit.cn
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import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email import encoders
import os
from email.header import Header
 
 
class EmailSender:
    def __init__(self, sender_email, sender_password, smtp_server, smtp_port, sender_name=None):
        self.sender_email = sender_email
        self.sender_password = sender_password
        self.smtp_server = smtp_server
        self.smtp_port = smtp_port
        self.sender_name = sender_name  # 添加这一行
 
    def send_email(self, receiver_email, subject, message, attachment_path=None, smtp_port=None):
        msg = MIMEMultipart()
        sender_header = Header(self.sender_name, 'utf-8') if self.sender_name else self.sender_email
        msg['From'] = sender_header
        msg['To'] = receiver_email
        msg['Subject'] = subject
 
        msg.attach(MIMEText(message, 'plain'))
 
        if attachment_path and os.path.exists(attachment_path):
            attachment = open(attachment_path, 'rb')
            part = MIMEBase('application', 'octet-stream')
            part.set_payload(attachment.read())
            encoders.encode_base64(part)
            part.add_header('Content-Disposition', f'attachment; filename= {os.path.basename(attachment_path)}')
            msg.attach(part)
 
        try:
            with smtplib.SMTP(self.smtp_server, self.smtp_port if not smtp_port else smtp_port) as server:
                server.starttls()
                server.login(self.sender_email, self.sender_password)
                server.sendmail(self.sender_email, receiver_email, msg.as_string())
                print("邮件发送成功！")
        except smtplib.SMTPException as e:
            print(f"发送邮件时出现错误：{e}")
 
        # 测试调用
 
 
def main():
    sender_email = '你的邮箱地址'  # 发送者邮箱
    sender_password = '你的邮箱密码'  # smtp密码或者自建邮箱的邮箱密码
    smtp_server = 'smtp.example.com'  # 邮箱服务器地址
    smtp_port = 587  # 根据你的邮箱服务商选择合适的端口，例如Gmail是587，QQ邮箱是465（SSL）或587（STARTTLS）
    sender_name = '你的名字'  # 可选，发件人名字
 
    email_sender = EmailSender(sender_email, sender_password, smtp_server, smtp_port, sender_name=sender_name)
    email_sender.send_email('接收者邮箱地址', '邮件主题', '邮件内容', attachment_path='/path/to/attachment.txt')
 
 
if __name__ == '__main__':
    main()

1. 你需要将sender_email, sender_password, smtp_server, smtp_port和sender_name替换为实际的值。
2. 你需要将receiver_email和attachment_path替换为实际的接收者邮箱地址和附件路径（如果你想添加附件的话）。
3. 根据你的邮箱服务商，smtp_port可能需要更改。例如，Gmail使用587端口，而QQ邮箱可以使用465（SSL）或587（STARTTLS）端口。
4. 某些邮箱服务商可能需要你在账户设置中开启“不够安全的应用”的访问权限，或者使用应用专用密码（而非你的邮箱密码）作为sender_password。
5. 在真实环境中，不建议在代码中硬编码敏感信息（如邮箱密码），而应使用