根据IDLE的规定，自动发送电子邮件的程序效果很好，但从未收到过该电子邮件

Question

我一直在用python编写程序来自动发送电子邮件。应该很简单。

我尝试了多种不同的方法，并且在尝试了一个新的非常规模块一个小时之后，我终于了解了我现在拥有的代码。

import smtplib, ssl
port = 587
server_name = 'smtp.gmail.com'
email = 'not_telling_you@my_email.com'
recipient = 'not_telling_you1@my_email.com'
message = 'Hello world'
context = ssl.create_default_context()
print('Having trouble? Go to "accounts.google.com > settings > less secure             app access > turn on access > on" when using a gmail account. It is not     recommended to do this with your normal account.')

import tkinter as tk

class Application(tk.Frame):
    def __init__(self, master=None):
        super().__init__(master)
        self.master = master
        self.pack()
        self.create_widgets()

    def create_widgets(self):
        self.hi_there = tk.Button(self)
        self.hi_there["text"] = "Log in"
        self.hi_there["command"] = self.login
        self.hi_there.pack(side="top")

        self.quit = tk.Button(self, text="QUIT", fg="red",
                          command=self.master.destroy)
        self.quit.pack(side="bottom")

    def login(self):
        server = smtplib.SMTP(server_name, port)
        print('Connecting to server...')
        server.ehlo()
        server.starttls()
        server.ehlo()
        print('Successfully connected to', server_name, 'through port', port)
        print('Logging in...')
        server.login(email,'****************')
        print('Successfully logged into', email)
        server.sendmail(email, recipient, message)
        print('Successfully sent', message, 'from', email, 'to', recipient)

root = tk.Tk()
app = Application(master=root)
app.mainloop()

它应该简单地在用户单击登录时自动发送电子邮件（我没有费心去更改它的显示内容，我是在一些旧程序的基础上构建的）。它到达发件人电子邮件的已发件箱，但收件人永远不会收到该电子邮件。