python - 在 Python 中使用 SMTP 发送电子邮件

Question

我正在做一个制作我自己的即时通讯程序的项目，即使没有图形或任何东西，只是为了了解Python中的内置模块。 在这里，我尝试编写一段代码，让用户输入所需的用户名和密码，然后(向用户)发送一封电子邮件，其中包含一个 12 个字符的随机字符串，用户将将其输入回程序。不知何故，当我运行代码时，我的整个计算机卡住了! 代码如下:

import smtplib
SMTPServer = smtplib.SMTP("smtp.gmail.com",587)
SMTPServer.starttls()
SMTPServer.login(USERNAME, PASSWORD)*

userEmail = raw_input("Please enter your e-mail: ")
if verifyEmail(userEmail) == False:
    while True:
        userEmail = raw_input("Error! Please enter your e-mail: ")
        if verifyEmail(userEmail) == True:
            break

randomString = generateRandomString()
message = """From: From Person <%s>
To: To Person <%s>
Subject: Ido's IM Program Registration

Your registration code is: %s
""" %(SERVEREMAIL, userEmail, randomString)

try:
   smtpObj = smtplib.SMTP('localhost')
   smtpObj.sendmail(SERVEREMAIL, userEmail, message)
   print "Successfully sent email"
except smtplib.SMTPException:
   print "Error: unable to send email"

inputString = raw_input("Input generated code sent: ")

Answer 1

这是 smtp 客户端的工作示例。 你的代码在哪里阻塞？

# -*- coding: utf-8 -*-
import smtplib
from email.mime.text import MIMEText


class SMTPClient(object):
    def __init__(self, recepient, subject, body):
        self.recepient = recepient
        self.subject = subject
        self.body = body
        self.mail_host = conf.get('smtp_server.host')
        self.mail_port = conf.get('smtp_server.port')
        self.username = conf.get('account.username')
        self.password = conf.get('account.password')
        self.mail_sender = conf.get('account.from')
        self._setup()

    def _setup(self):
        self.smtp_client = smtplib.SMTP(self.mail_host, self.mail_port)
        self.smtp_client.ehlo_or_helo_if_needed()
        self.smtp_client.starttls()
        self.smtp_client.login(self.username, self.password)
        self._send_mail()

    def _make_mail(self):
        message = MIMEText(self.body, _charset='utf-8')
        message['From'] = self.mail_sender
        message['To'] = self.recepient
        message['Subject'] = self.subject
        return message.as_string()

    def send_mail(self):
        self.smtp_client.sendmail(self.mail_sender, self.recepient, self._make_mail())
        self.smtp_client.quit()