在 Python 中发送带有多个附件的邮件答案

【问题标题】：Sending mails with multiple attachment in Python在 Python 中发送带有多个附件的邮件
【发布时间】：2020-08-28 10:26:45
【问题描述】：

我编写了一个代码来使用 Python 向多个用户发送带有附件的邮件。因此，代码将访问 csv 文件，获取电子邮件地址和相应的 excel 文件并发送带有附件的邮件。

此代码运行良好，但要求已更改。新要求是，我需要将多个文件附加到一个收件人（不能发送多封邮件）。例如，我需要附上 TEST.pdf 和另一个 TEST123.pdf 文件并发送到 test1@hotmail.com（请参考图片）。

我已尽力而为，但代码中不断出现错误。有人可以帮我解决这个问题吗？

我的 Python 代码

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.mime.base import MIMEBase
from email import encoders
import pandas as pd

e = pd.read_csv("C:\\Users\\Hp-Pc\\Desktop\\mail.csv")
server = smtplib.SMTP_SSL('smtp.gmail.com', 465)

server.login("email", "pw")

body = ("""
Hi There

Please refer attachment

Thanks & Regards
""")
subject = ["PDF"]
fromaddr='email'

for index, row in e.iterrows():
print (row["Emails"]+row["PDF"])
msg = MIMEMultipart()
msg['From'] = fromaddr
msg['Subject'] = row["PDF"]
msg.attach(MIMEText(body, 'plain'))
filename = row["PDF"]
toaddr = row["Emails"]
attachment = open(row["PDF"], "rb")
part = MIMEBase('application', 'octet-stream')
part.set_payload((attachment).read())
encoders.encode_base64(part)
part.add_header('Content-Disposition', "attachment; filename= %s" % filename)
msg.attach(part)
text = msg.as_string()
server.sendmail(fromaddr, toaddr, text)


print("Emails sent successfully")

server.quit()

【问题讨论】：

标签： python email

【解决方案1】：

您可以使用AutoMailer应用程序（用Python制作，作者：我自己）

它可以发送多个附件。它从 CSV 文件中读取收件人

（不用担心，您可以轻松地将 Excel 文件导出为 CSV，Google Sheets 和 Microsoft Excel，Libre Office 都支持导出为 CSV 格式）

https://github.com/aahnik/AutoMailer

这是开源的，您可以看到该功能是如何实现的。访问上面的链接

【讨论】：

【解决方案2】：

请看下文。

from importlib import reload
import win32com.client as win32
import pythoncom
import sys
import os
import pandas as pd

reload(sys)

pythoncom.CoInitialize()
outlook = win32.Dispatch('outlook.application')

def sendmail(receiver, attachment, subject):
    receiver = receiver
    attachment = attachment
    sub = subject
    body = "Please find the attached supporting documents for member rebates."
    mail = outlook.CreateItem(0)
    mail.To = receiver
    mail.subject = sub.encode('utf-8').decode('utf-8')
    mail.Body = body.encode('utf-8').decode('utf-8')
# Upload multiple attachments/files that meet the conditions/requirements
    for i in range(len(attachment)):
        mail.Attachments.Add(attachment[i])
    mail.Send()

# Folder of attachments
path = r"C:\Users\Desktop "

# Address spreadsheet
addr = pd.read_excel(r"C:\Users\Desktop\address.xlsx")

for j in range(len(addr.Code)):
    dirlist = []
# Address spreadsheet includes “Code” which is the recipient’s name/ID, and “add”, the email address
    sub_code = addr.Code[j].astype("str")
    subjects = sub_code + " - invoices"
# If the file names include the recipient’s ID at the start of 4 letters, the file(s) would be added to the list
    for dirpath,dirname,filename in os.walk(path):
        print(addr.Code[j].astype("str"))
        for i in filename:
            if i[0:4] == sub_code:
                dirlist.append(os.path.join(dirpath,i))
    # Send emails to multiple recipients with corresponding attachments            
    sendmail(add r["add"][j], dirlist, subjects)

我使用它向每个收件人发送多张发票。

【讨论】：