如何将电子邮件发送给多个收件人？ [复制]

Posted 2023-03-15

【中文标题】如何将电子邮件发送给多个收件人？ [复制]

【英文标题】：how to send email to multiple recipients? [duplicate]

【发布时间】：2013-09-02 16:18:25

【问题描述】：

我正在尝试使用以下代码向两个用户 ID 发送电子邮件，知道出了什么问题吗？如何发送给多个收件人？

def email1(body,subject):
    print "In email1"
    msg = MIMEText("%s" % body)
    msg['Content-Type'] = "text/html; charset=UTF8"
    msg['Subject'] = subject
    s = SMTP('localhost',25)
    s.sendmail('[e-mail]', ['[e-mail]','[e-mail]'],msg=msg.as_string())

【参考方案1】：

将函数组织成更可重用的形式：

from smtplib import SMTP
from email.mime.text import MIMEText

def send_email(body, subj, frm, to, host='localhost', port=25):
    msg = MIMEText(body)
    msg['Content-Type'] = 'text/html; charset=UTF8'
    msg['Subject'] = subj
    msg['From'] = frm
    msg['To'] = ', '.join(to) if type(to) == list else to
    smtp = SMTP(host, port)
    smtp.sendmail(frm, to, msg=msg.as_string())

要使用内置 SMTP 服务器对其进行测试，请使用以下命令在端口 3000 上运行它：

python -msmtpd -n -c DebuggingServer localhost:3000

并发送一些电子邮件：

>>> send_email('Message', 'Spam', '[e-mail]', ['[e-mail]', '[e-mail]'], port=3000)
>>>
>>> send_email('Message', 'Spam', '[e-mail]', '[e-mail]', port=3000)
>>>

你应该看到：

> python -msmtpd -n -c DebuggingServer localhost:3000
---------- MESSAGE FOLLOWS ----------
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/html; charset=UTF8
Subject: Spam
From: [e-mail]
To: [e-mail], [e-mail]
X-Peer: 127.0.0.1

Message
------------ END MESSAGE ------------
---------- MESSAGE FOLLOWS ----------
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/html; charset=UTF8
Subject: Spam
From: [e-mail]
To: [e-mail]
X-Peer: 127.0.0.1

Message
------------ END MESSAGE ------------