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我有以下用 Python 3 编写的电子邮件代码...我想根据接收客户端以 HTML 或纯文本形式发送电子邮件。但是,hotmail 和 gmail(我使用后者发送)都接收零换行符/回车符,使纯文本出现在一行上。我的问题是如何在接收方的纯文本电子邮件中获得换行/回车?Linux 上的 Thunderbird 是我的首选客户端,但我在 Microsoft 的 webmail hotmail 中也注意到了同样的问题。

#!/usr/bin/env python3
# encoding: utf-8
"""
python_3_email_with_attachment.py
Created by Robert Dempsey on 12/6/14; edited by Oliver Ernster.
Copyright (c) 2014 Robert Dempsey. Use at your own peril.

This script works with Python 3.x
"""

import os,sys
import smtplib
from email import encoders
from email.mime.base import MIMEBase
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

COMMASPACE = ', '

def send_email(user, pwd, recipient, subject, bodyhtml, bodytext):
    sender = user
    gmail_password = pwd
    recipients = recipient if type(recipient) is list else [recipient]

    # Create the enclosing (outer) message
    outer = MIMEMultipart('alternative')
    outer['Subject'] = subject
    outer['To'] = COMMASPACE.join(recipients)
    outer['From'] = sender
    outer.preamble = 'You will not see this in a MIME-aware mail reader.\n'

    # List of attachments
    attachments = []

    # Add the attachments to the message
    for file in attachments:
        try:
            with open(file, 'rb') as fp:
                msg = MIMEBase('application', "octet-stream")
                msg.set_payload(fp.read())
            encoders.encode_base64(msg)
            msg.add_header('Content-Disposition', 'attachment', filename=os.path.basename(file))
            outer.attach(msg)
        except:
            print("Unable to open one of the attachments. Error: ", sys.exc_info()[0])
            raise

    part1 = MIMEText(bodytext, 'plain', 'utf-8')
    part2 = MIMEText(bodyhtml, 'html', 'utf-8')

    outer.attach(part1)
    outer.attach(part2)

    composed = outer.as_string()

    # Send the email
    try:
        with smtplib.SMTP('smtp.gmail.com', 587) as s:
            s.ehlo()
            s.starttls()
            s.ehlo()
            s.login(sender, gmail_password)
            s.sendmail(sender, recipients, composed)
            s.close()
        print("Email sent!")
    except:
        print("Unable to send the email. Error: ", sys.exc_info()[0])
        raise

这是测试代码:

def test_example():

some_param = 'test'
another_param = '123456'
yet_another_param = '12345'

complete_html = pre_written_safe_and_working_html

email_text = "Please see :" + '\r\n' \
                + "stuff: " + '\r\n' + some_param + '\r\n' \
                + "more stuff: " + '\r\n' + another_param + '\r\n' \
                + "stuff again: " + '\r\n' + yet_another_param, + '\r\n'

recipients = ['targetemail@gmail.com']

send_email('myaddress@gmail.com', \
           'password', \
           recipients, \
           'Title', \
           email_text, \
           complete_html)

任何建议都会受到欢迎,因为似乎互联网上的每个人都只使用 HTML 电子邮件。这很好,但我希望能够为我们这些不想使用 HTML 的人回退到纯文本。

谢谢,

4

1 回答 1

1

我真的可以推荐您使用yagmail(完全免责声明:我是开发人员/维护人员)。

其主要目的之一是使发送附件和发送 HTML 代码变得非常容易。

默认文本/内联图像等实际上包装在 HTML 中(因此默认情况下,电子邮件以 HTML 格式发送)。

文件名可以根据内容智能猜测并添加。

只需将其全部塞入内容中,yagmail即可发挥作用。

但是,这显然对您很重要,它也已经设置了“替代”mimeparts。没有人要求它,所以如果你发现任何问题,它真的可以使用你的帮助来提及 github 跟踪器上的错误。

import yagmail
yag = yagmail.SMTP('myaddress@gmail.com', 'password')

contents = ['/local/file.png', 'some text',
            '<b><a href="https://github.com/kootenpv/yagmail">a link</a></b>']

yag.send(to='targetemail@gmail.com', subject='Title', contents = contents)

您也可以将其设置为无密码,然后您可以在脚本中没有用户名/密码的情况下登录,即

yag = yagmail.SMTP()

希望有所帮助!

大多数问题可以通过阅读 github 上的自述文件来回答:https ://github.com/kootenpv/yagmail

于 2015-10-03T15:28:10.080 回答