使用 smtp 使用 python 发送电子邮件

Question

我正在尝试通过 python 使用 SMTP 发送电子邮件。 这是我的代码：

import smtplib
from email.mime.text import MIMEText

textfile='msg.txt'
you='ashwin@gmail.com'
me='ashwin@gmail.com'

fp = open(textfile, 'rb')
msg = MIMEText(fp.read())
fp.close()

# me == the sender's email address
# you == the recipient's email address
msg['Subject'] = 'The contents of %s' % textfile
msg['From'] = me
msg['To'] = you
print "reached before s"
s = smtplib.SMTP('127.0.0.1',8000)
print "reached after s"
s.sendmail(me, [you], msg.as_string())
s.quit()

当我尝试执行此代码时，会打印“在 s 之前到达”，然后进入一个无限循环左右，即“在 s 之后到达”不会打印并且程序仍在运行。 这是服务器的代码：

import sys
import BaseHTTPServer
from SimpleHTTPServer import SimpleHTTPRequestHandler

HandlerClass = SimpleHTTPRequestHandler
ServerClass  = BaseHTTPServer.HTTPServer
Protocol     = "HTTP/1.0"


if sys.argv[1:]:
    port = int(sys.argv[1])
else:
    port = 8000
server_address = ('127.0.0.1', port)



HandlerClass.protocol_version = Protocol
httpd = ServerClass(server_address, HandlerClass)

sa = httpd.socket.getsockname()
print "Serving HTTP on", sa[0], "port", sa[1], "..."
httpd.serve_forever()

有人能找出问题所在吗？

Answer 1

我相信yagmail（免责声明：我是维护者）对你有很大帮助。

它的目标是让发送带有附件的电子邮件变得容易。

import yagmail
yag = yagmail.SMTP('ashwin@gmail.com', 'yourpassword')
yag.send(to = 'ashwin@gmail.com', subject ='The contents of msg.txt', contents = 'msg.txt')

确实只有三行。

请注意，yagmail contents 将尝试加载传递的字符串。如果不能，它将作为文本发送，如果它可以加载，它将附加它。

如果您传递一个字符串列表，它会尝试将每个字符串加载为一个文件（或者再次显示文本）。

使用pip install yagmail 或pip3 install yagmail 安装Python 3。

更多信息请访问github。

Answer 2

这是一种不同的方法，它创建了一个电子邮件发件人类，并处理了所有错误处理：

import getpass
import smtplib

class EmailBot(object):
    # Gets the username and password and sets up the Gmail connection
    def __init__(self):
        self.username = \
            raw_input('Please enter your Gmail address and hit Enter: ')
        self.password = \
        getpass.getpass('Please enter the password for this email account and hit Enter: ')
        self.server = 'smtp.gmail.com'
        self.port = 587
        print 'Connecting to the server. Please wait a moment...'

        try:
            self.session = smtplib.SMTP(self.server, self.port)
            self.session.ehlo()  # Identifying ourself to the server
            self.session.starttls()  # Puts the SMTP connection in TLS mode. All SMTP commands that follow will be encrypted
            self.session.ehlo()
        except smtplib.socket.gaierror:
            print 'Error connecting. Please try running the program again later.'
            sys.exit() # The program will cleanly exit in such an error

        try:
            self.session.login(self.username, self.password)
            del self.password
        except smtplib.SMTPAuthenticationError:
            print 'Invalid username (%s) and/or password. Please try running the program again later.'\
                 % self.username
            sys.exit() # program will cleanly exit in such an error

        def send_message(self, subject, body):
            try:
                headers = ['From: ' + self.username, 'Subject: ' + subject,
                   'To: ' + self.username, 'MIME-Version: 1.0',
                   'Content-Type: text/html']
                headers = '\r\n'.join(headers)

                self.session.sendmail(self.username, self.username, headers + '''\r\r''' + body)
            except smtplib.socket.timeout:
                print 'Socket error while sending message. Please try running the program again later.'
                sys.exit() # Program cleanly exits
            except:
                print "Couldn't send message. Please try running the program again later."
                sys.exit() # Program cleanly exits

您需要做的就是创建一个 EmailBot 实例并在其上调用 send_message 方法，并将适当的详细信息作为输入。