PyQt5 邮件客户端

下面是一个简洁高效的邮件客户端实现，支持编写邮件、添加附件和发送邮件功能：
编写 eMailClient_qt.py 如下

# -*- coding: utf-8 -*-
""" 用 PyQt5 开发一个邮件客户端，能编写邮件，发送邮件及附件 """
import os
import sys
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders
from PyQt5.QtWidgets import (QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout, QFileDialog,QLineEdit, QTextEdit, QPushButton, QLabel,QListWidget, QMessageBox, QStatusBar, QGridLayout)
from PyQt5.QtGui import QFont, QPalette, QColor
from PyQt5.QtCore import Qt, QSizeclass EmailClient(QMainWindow):def __init__(self):super().__init__()self.setWindowTitle("邮件客户端")# 设置窗口大小为1000x600self.setGeometry(100, 100, 1000, 600)# 设置现代化UI样式self.setStyleSheet("""QMainWindow {background-color: #f0f2f5;}QLabel {color: #333;font-size: 12px;font-weight: bold;padding: 2px 0;}QLineEdit, QTextEdit {background-color: white;border: 1px solid #dcdfe6;border-radius: 4px;padding: 8px;font-size: 13px;}QLineEdit:focus, QTextEdit:focus {border: 1px solid #4a90e2;}QPushButton {background-color: #4a90e2;color: white;border: none;border-radius: 4px;padding: 8px 15px;font-size: 13px;min-height: 30px;}QPushButton:hover {background-color: #3a7bc8;}QPushButton:pressed {background-color: #2a65a8;}QPushButton#attachButton {background-color: #f5f7fa;color: #4a90e2;border: 1px solid #4a90e2;}QPushButton#sendButton {background-color: #27ae60;padding: 10px 25px;font-size: 14px;font-weight: bold;}QPushButton#sendButton:hover {background-color: #219653;}QListWidget {background-color: white;border: 1px solid #dcdfe6;border-radius: 4px;padding: 5px;font-size: 12px;alternate-background-color: #f8f9fa;}QStatusBar {background-color: #e0e6ed;color: #666;font-size: 11px;padding: 5px;}QFrame#headerFrame {background-color: #4a90e2;border-radius: 5px;padding: 10px;}""")# 创建中央部件central_widget = QWidget()self.setCentralWidget(central_widget)# 主布局 - 使用网格布局更灵活main_layout = QGridLayout(central_widget)main_layout.setSpacing(15)main_layout.setContentsMargins(15, 15, 15, 15)# 标题区域title_label = QLabel("邮件客户端")title_label.setFont(QFont("Arial", 18, QFont.Bold))title_label.setStyleSheet("color: #2c3e50;")main_layout.addWidget(title_label, 0, 0, 1, 3, alignment=Qt.AlignLeft)# 发件人信息main_layout.addWidget(QLabel("发件人:"), 1, 0, alignment=Qt.AlignRight)self.sender_email = QLineEdit()self.sender_email.setPlaceholderText("your_email@qq.com")main_layout.addWidget(self.sender_email, 1, 1, 1, 2)main_layout.addWidget(QLabel("密码:"), 1, 3, alignment=Qt.AlignRight)self.password = QLineEdit()self.password.setEchoMode(QLineEdit.Password)self.password.setPlaceholderText("邮箱密码或应用密码")main_layout.addWidget(self.password, 1, 4)# 收件人 - 标签和输入框在同一行main_layout.addWidget(QLabel("收件人:"), 2, 0, alignment=Qt.AlignRight)self.recipient_email = QLineEdit()self.recipient_email.setPlaceholderText("recipient@qq.com")main_layout.addWidget(self.recipient_email, 2, 1, 1, 4)# 主题 - 标签和输入框在同一行main_layout.addWidget(QLabel("主题:"), 3, 0, alignment=Qt.AlignRight)self.subject = QLineEdit()self.subject.setPlaceholderText("邮件主题")main_layout.addWidget(self.subject, 3, 1, 1, 4)# 附件main_layout.addWidget(QLabel("附件:"), 4, 0, alignment=Qt.AlignRight | Qt.AlignTop)# 附件列表和按钮attachment_widget = QWidget()attachment_layout = QVBoxLayout(attachment_widget)self.attachment_list = QListWidget()self.attachment_list.setMinimumHeight(80)attachment_layout.addWidget(self.attachment_list)# 按钮布局btn_layout = QHBoxLayout()attach_button = QPushButton("添加附件")attach_button.setObjectName("attachButton")attach_button.clicked.connect(self.add_attachment)btn_layout.addWidget(attach_button)remove_button = QPushButton("移除附件")remove_button.setObjectName("attachButton")remove_button.clicked.connect(self.remove_attachment)btn_layout.addWidget(remove_button)attachment_layout.addLayout(btn_layout)main_layout.addWidget(attachment_widget, 4, 1, 1, 4)# 邮件正文 - 扩大区域main_layout.addWidget(QLabel("正文:"), 5, 0, alignment=Qt.AlignRight | Qt.AlignTop)self.body = QTextEdit()self.body.setPlaceholderText("在此输入邮件内容...")# 设置正文区域的行数（相对扩大）main_layout.addWidget(self.body, 5, 1, 1, 4)# 发送按钮send_button = QPushButton("发送邮件")send_button.setObjectName("sendButton")send_button.clicked.connect(self.send_email)main_layout.addWidget(send_button, 6, 4, alignment=Qt.AlignRight)# 设置行和列的比例，使正文区域扩大main_layout.setRowStretch(5, 3)  # 正文区域行权重设为3main_layout.setColumnStretch(1, 1)main_layout.setColumnStretch(2, 1)main_layout.setColumnStretch(3, 1)main_layout.setColumnStretch(4, 2)  # 右侧列权重更大# 状态栏self.status_bar = QStatusBar()self.setStatusBar(self.status_bar)self.status_bar.showMessage(f"就绪 - 窗口大小: {self.width()}x{self.height()}")# 存储附件路径self.attachments = []# 设置示例数据self.sender_email.setText("your_email@qq.com")self.recipient_email.setText("recipient@qq.com")self.subject.setText("PyQt5 邮件客户端测试")self.body.setPlainText("这是一封测试邮件，使用 PyQt5 邮件客户端发送。\n\n""此邮件支持添加多个附件，并采用现代化的界面设计。\n\n""功能包括：\n""• 邮件编写\n""• 附件添加/移除\n""• 邮件发送\n""• 状态反馈\n\n""祝您使用愉快！")def add_attachment(self):files, _ = QFileDialog.getOpenFileNames(self, "选择附件", "", "所有文件 (*.*)")if files:self.attachments.extend(files)self.attachment_list.addItems(files)self.status_bar.showMessage(f"已添加 {len(files)} 个附件")def remove_attachment(self):current_row = self.attachment_list.currentRow()if current_row >= 0:item = self.attachment_list.takeItem(current_row)del self.attachments[current_row]self.status_bar.showMessage(f"已移除附件: {item.text()}")else:self.status_bar.showMessage("请选择要移除的附件")def send_email(self):sender = self.sender_email.text()password = self.password.text()recipient = self.recipient_email.text()subject = self.subject.text()body = self.body.toPlainText()  # 使用纯文本格式if not sender or not password or not recipient:QMessageBox.warning(self, "输入错误", "请填写完整的发件人、密码和收件人信息")returntry:# 创建邮件对象msg = MIMEMultipart()msg['From'] = sendermsg['To'] = recipientmsg['Subject'] = subject# 添加邮件正文msg.attach(MIMEText(body, 'plain'))# 添加附件for file_path in self.attachments:try:with open(file_path, "rb") as attachment:part = MIMEBase("application", "octet-stream")part.set_payload(attachment.read())encoders.encode_base64(part)# 获取文件名filename = file_path.split('/')[-1] if '/' in file_path else file_pathfilename = filename.split('\\')[-1]  # 处理Windows路径part.add_header("Content-Disposition",f"attachment; filename={filename}",)msg.attach(part)except Exception as e:self.status_bar.showMessage(f"添加附件失败: {str(e)}")return# 连接SMTP服务器并发送邮件self.status_bar.showMessage("正在连接服务器...")server = smtplib.SMTP_SSL('smtp.gmail.com', 465)  # 使用Gmail SMTP服务器self.status_bar.showMessage("正在登录...")server.login(sender, password)self.status_bar.showMessage("正在发送邮件...")server.sendmail(sender, recipient, msg.as_string())server.quit()# 发送成功后的操作self.status_bar.showMessage("邮件发送成功！")QMessageBox.information(self, "发送成功", "邮件已成功发送！")# 清空附件列表self.attachment_list.clear()self.attachments = []except smtplib.SMTPAuthenticationError:QMessageBox.critical(self, "认证失败", "邮箱或密码错误，请检查您的登录信息")self.status_bar.showMessage("认证失败")except Exception as e:QMessageBox.critical(self, "发送失败", f"邮件发送失败: {str(e)}")self.status_bar.showMessage(f"发送失败: {str(e)}")def resizeEvent(self, event):"""窗口大小改变时更新状态栏信息"""self.status_bar.showMessage(f"就绪 - 窗口大小: {self.width()}x{self.height()}")super().resizeEvent(event)if __name__ == "__main__":app = QApplication(sys.argv)# 设置应用样式palette = QPalette()palette.setColor(QPalette.Window, QColor(240, 242, 245))palette.setColor(QPalette.WindowText, QColor(51, 51, 51))palette.setColor(QPalette.Base, QColor(255, 255, 255))palette.setColor(QPalette.AlternateBase, QColor(248, 249, 250))palette.setColor(QPalette.Button, QColor(74, 144, 226))palette.setColor(QPalette.ButtonText, QColor(255, 255, 255))palette.setColor(QPalette.Highlight, QColor(74, 144, 226))palette.setColor(QPalette.HighlightedText, QColor(255, 255, 255))app.setPalette(palette)client = EmailClient()client.show()sys.exit(app.exec_())

功能说明

这个邮件客户端实现了以下核心功能：

1. 邮件编写：

   • 发件人邮箱和密码输入
   • 收件人地址输入
   • 邮件主题输入
   • 邮件正文编辑区域

2. 附件管理：

   • 添加多个附件
   • 查看附件列表
   • 移除选中的附件

3. 邮件发送：

   • 使用SMTP协议发送邮件
   • 支持纯文本格式的邮件内容
   • 支持发送多个附件
   • 错误处理和状态反馈

使用说明

1. 在"发件人"字段输入您的邮箱地址
2. 在"密码"字段输入您的邮箱密码（或应用专用密码）
3. 在"收件人"字段输入收件人邮箱地址
4. 填写邮件主题和正文内容
5. 点击"添加附件"按钮选择要发送的文件
6. 点击"发送邮件"按钮发送邮件

注意事项

1. 该程序默认使用Gmail的SMTP服务器（smtp.gmail.com:465），如果您使用其他邮箱服务：

   • QQ邮箱：smtp.qq.com:465
   • 163邮箱：smtp.163.com:465
   • Outlook：smtp.office365.com:587（需要使用TLS）

2. 部分邮箱服务需要开启SMTP服务并获取授权码：

   • Gmail：需要在账户设置中开启"安全性较低的应用的访问权限"
   • QQ/163：需要在邮箱设置中开启SMTP服务并获取授权码

3. 出于安全考虑，程序不会保存您的密码，每次发送邮件都需要输入

这个程序提供了一个简洁高效的邮件发送解决方案，代码结构清晰，去除了不必要的装饰元素，专注于核心功能的实现。

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PyQt5 邮件客户端 - 优化布局

下面是一个优化布局的邮件客户端实现，窗口大小调整为1000x600，提供更舒适的编辑体验：
编写 eMailClient_qt5.py 如下

import sys
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders
from PyQt5.QtWidgets import (QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout,QLineEdit, QTextEdit, QPushButton, QLabel, QFileDialog,QListWidget, QMessageBox, QStatusBar, QSplitter, QFrame)
from PyQt5.QtGui import QFont, QPalette, QColor
from PyQt5.QtCore import Qtclass EmailClient(QMainWindow):def __init__(self):super().__init__()self.setWindowTitle("邮件客户端")# 设置窗口大小为1000x600self.setGeometry(100, 100, 1000, 600)# 设置现代化UI样式self.setStyleSheet("""QMainWindow {background-color: #f0f2f5;}QLabel {color: #333;font-size: 12px;font-weight: bold;padding: 2px 0;}QLineEdit, QTextEdit {background-color: white;border: 1px solid #dcdfe6;border-radius: 4px;padding: 8px;font-size: 13px;}QLineEdit:focus, QTextEdit:focus {border: 1px solid #4a90e2;}QPushButton {background-color: #4a90e2;color: white;border: none;border-radius: 4px;padding: 8px 15px;font-size: 13px;min-height: 30px;}QPushButton:hover {background-color: #3a7bc8;}QPushButton:pressed {background-color: #2a65a8;}QPushButton#attachButton {background-color: #f5f7fa;color: #4a90e2;border: 1px solid #4a90e2;}QPushButton#sendButton {background-color: #27ae60;padding: 10px 25px;font-size: 14px;font-weight: bold;}QPushButton#sendButton:hover {background-color: #219653;}QListWidget {background-color: white;border: 1px solid #dcdfe6;border-radius: 4px;padding: 5px;font-size: 12px;alternate-background-color: #f8f9fa;}QStatusBar {background-color: #e0e6ed;color: #666;font-size: 11px;padding: 5px;}QFrame#headerFrame {background-color: #4a90e2;border-radius: 5px;padding: 10px;}""")# 创建中央部件central_widget = QWidget()self.setCentralWidget(central_widget)# 主布局main_layout = QVBoxLayout(central_widget)main_layout.setSpacing(15)main_layout.setContentsMargins(15, 15, 15, 15)# 标题区域header_frame = QFrame()header_frame.setObjectName("headerFrame")header_layout = QHBoxLayout(header_frame)header_layout.setContentsMargins(10, 5, 10, 5)title_label = QLabel("邮件客户端")title_label.setFont(QFont("Arial", 18, QFont.Bold))title_label.setStyleSheet("color: white;")header_layout.addWidget(title_label)header_layout.addStretch()main_layout.addWidget(header_frame)# 创建分割器，左侧为设置区域，右侧为编辑区域splitter = QSplitter(Qt.Horizontal)main_layout.addWidget(splitter, 1)# 左侧设置面板settings_panel = QWidget()settings_layout = QVBoxLayout(settings_panel)settings_layout.setContentsMargins(0, 0, 10, 0)# 发件人信息sender_group = QWidget()sender_layout = QVBoxLayout(sender_group)sender_layout.addWidget(QLabel("发件人设置"))sender_form = QHBoxLayout()sender_form.addWidget(QLabel("邮箱:"))self.sender_email = QLineEdit()self.sender_email.setPlaceholderText("your_email@example.com")sender_form.addWidget(self.sender_email)sender_layout.addLayout(sender_form)sender_form2 = QHBoxLayout()sender_form2.addWidget(QLabel("密码:"))self.password = QLineEdit()self.password.setEchoMode(QLineEdit.Password)self.password.setPlaceholderText("邮箱密码或应用密码")sender_form2.addWidget(self.password)sender_layout.addLayout(sender_form2)settings_layout.addWidget(sender_group)# 收件人recipient_group = QWidget()recipient_layout = QVBoxLayout(recipient_group)recipient_layout.addWidget(QLabel("收件人"))self.recipient_email = QLineEdit()self.recipient_email.setPlaceholderText("recipient@example.com")recipient_layout.addWidget(self.recipient_email)settings_layout.addWidget(recipient_group)# 主题subject_group = QWidget()subject_layout = QVBoxLayout(subject_group)subject_layout.addWidget(QLabel("主题"))self.subject = QLineEdit()self.subject.setPlaceholderText("邮件主题")subject_layout.addWidget(self.subject)settings_layout.addWidget(subject_group)# 附件attachment_group = QWidget()attachment_layout = QVBoxLayout(attachment_group)attachment_layout.addWidget(QLabel("附件"))# 附件列表self.attachment_list = QListWidget()self.attachment_list.setMinimumHeight(100)attachment_layout.addWidget(self.attachment_list)# 附件按钮btn_layout = QHBoxLayout()attach_button = QPushButton("添加附件")attach_button.setObjectName("attachButton")attach_button.clicked.connect(self.add_attachment)btn_layout.addWidget(attach_button)remove_button = QPushButton("移除附件")remove_button.setObjectName("attachButton")remove_button.clicked.connect(self.remove_attachment)btn_layout.addWidget(remove_button)attachment_layout.addLayout(btn_layout)settings_layout.addWidget(attachment_group)settings_layout.addStretch()# 右侧编辑区域editor_panel = QWidget()editor_layout = QVBoxLayout(editor_panel)editor_layout.setContentsMargins(0, 0, 0, 0)# 邮件正文editor_layout.addWidget(QLabel("邮件正文"))self.body = QTextEdit()self.body.setPlaceholderText("在此输入邮件内容...")editor_layout.addWidget(self.body, 1)# 发送按钮send_button = QPushButton("发送邮件")send_button.setObjectName("sendButton")send_button.clicked.connect(self.send_email)editor_layout.addWidget(send_button, 0, Qt.AlignRight)# 添加左右面板到分割器splitter.addWidget(settings_panel)splitter.addWidget(editor_panel)splitter.setSizes([300, 700])# 状态栏self.status_bar = QStatusBar()self.setStatusBar(self.status_bar)self.status_bar.showMessage("就绪 - 窗口大小: 1000x600")# 存储附件路径self.attachments = []# 设置示例数据self.sender_email.setText("your_email@example.com")self.recipient_email.setText("recipient@example.com")self.subject.setText("PyQt5 邮件客户端测试")self.body.setPlainText("这是一封测试邮件，使用 PyQt5 邮件客户端发送。\n\n""此邮件支持添加多个附件，并采用现代化的界面设计。\n\n""功能包括：\n""• 邮件编写\n""• 附件添加/移除\n""• 邮件发送\n""• 状态反馈\n\n""祝您使用愉快！")def add_attachment(self):files, _ = QFileDialog.getOpenFileNames(self, "选择附件", "", "所有文件 (*.*)")if files:self.attachments.extend(files)self.attachment_list.addItems(files)self.status_bar.showMessage(f"已添加 {len(files)} 个附件")def remove_attachment(self):current_row = self.attachment_list.currentRow()if current_row >= 0:item = self.attachment_list.takeItem(current_row)del self.attachments[current_row]self.status_bar.showMessage(f"已移除附件: {item.text()}")else:self.status_bar.showMessage("请选择要移除的附件")def send_email(self):sender = self.sender_email.text()password = self.password.text()recipient = self.recipient_email.text()subject = self.subject.text()body = self.body.toPlainText()  # 使用纯文本格式if not sender or not password or not recipient:QMessageBox.warning(self, "输入错误", "请填写完整的发件人、密码和收件人信息")returntry:# 创建邮件对象msg = MIMEMultipart()msg['From'] = sendermsg['To'] = recipientmsg['Subject'] = subject# 添加邮件正文msg.attach(MIMEText(body, 'plain'))# 添加附件for file_path in self.attachments:try:with open(file_path, "rb") as attachment:part = MIMEBase("application", "octet-stream")part.set_payload(attachment.read())encoders.encode_base64(part)# 获取文件名filename = file_path.split('/')[-1] if '/' in file_path else file_pathfilename = filename.split('\\')[-1]  # 处理Windows路径part.add_header("Content-Disposition",f"attachment; filename={filename}",)msg.attach(part)except Exception as e:self.status_bar.showMessage(f"添加附件失败: {str(e)}")return# 连接SMTP服务器并发送邮件self.status_bar.showMessage("正在连接服务器...")server = smtplib.SMTP_SSL('smtp.gmail.com', 465)  # 使用Gmail SMTP服务器self.status_bar.showMessage("正在登录...")server.login(sender, password)self.status_bar.showMessage("正在发送邮件...")server.sendmail(sender, recipient, msg.as_string())server.quit()# 发送成功后的操作self.status_bar.showMessage("邮件发送成功！")QMessageBox.information(self, "发送成功", "邮件已成功发送！")# 清空附件列表self.attachment_list.clear()self.attachments = []except smtplib.SMTPAuthenticationError:QMessageBox.critical(self, "认证失败", "邮箱或密码错误，请检查您的登录信息")self.status_bar.showMessage("认证失败")except Exception as e:QMessageBox.critical(self, "发送失败", f"邮件发送失败: {str(e)}")self.status_bar.showMessage(f"发送失败: {str(e)}")if __name__ == "__main__":app = QApplication(sys.argv)# 设置应用样式palette = QPalette()palette.setColor(QPalette.Window, QColor(240, 242, 245))palette.setColor(QPalette.WindowText, QColor(51, 51, 51))palette.setColor(QPalette.Base, QColor(255, 255, 255))palette.setColor(QPalette.AlternateBase, QColor(248, 249, 250))palette.setColor(QPalette.Button, QColor(74, 144, 226))palette.setColor(QPalette.ButtonText, QColor(255, 255, 255))palette.setColor(QPalette.Highlight, QColor(74, 144, 226))palette.setColor(QPalette.HighlightedText, QColor(255, 255, 255))app.setPalette(palette)client = EmailClient()client.show()sys.exit(app.exec_())

功能说明

这个邮件客户端具有以下特点：

1. 现代化UI设计：

   • 蓝色主题与现代化界面元素
   • 分割布局（左侧设置区，右侧编辑区）
   • 响应式设计，适应1000x600窗口尺寸

2. 邮件功能：

   • 完整的邮件编写功能
   • 多附件支持（添加/移除）
   • SMTP邮件发送

3. 用户体验优化：

   • 状态提示（连接、登录、发送状态）
   • 详细的错误反馈
   • 清晰的视觉层次结构

4. 布局优化：

   • 左侧设置面板：发件人信息、收件人、主题、附件管理
   • 右侧编辑面板：邮件正文编辑区域
   • 底部状态栏：显示操作状态和反馈

使用说明

1. 左侧设置面板：

   • 输入发件人邮箱和密码
   • 输入收件人邮箱地址
   • 填写邮件主题
   • 管理附件（添加/移除）

2. 右侧编辑面板：

   • 在正文区域编写邮件内容
   • 点击"发送邮件"按钮发送

3. 状态反馈：

   • 状态栏显示当前操作状态
   • 发送成功/失败会有弹窗提示

技术特点

1. 窗口尺寸：

   • 主窗口设置为1000x600像素，提供宽敞的编辑空间
   • 使用QSplitter实现可调整大小的面板

2. 邮件发送：

   • 支持Gmail SMTP服务器（可修改为其他服务商）
   • 支持纯文本邮件内容
   • 支持多个附件发送

3. 错误处理：

   • 详细的错误捕获和反馈
   • 认证失败、发送失败等情况的专门处理

这个邮件客户端在保持功能完整性的同时，提供了更加现代化和专业的用户界面，充分利用了1000x600的窗口空间，为用户带来更舒适的邮件编辑体验。