In this tutorial, we will introduce you on how to send email with file attachment in python.

If you want to use outlook email to send attachment, you can refer this tutorial:

Send Email with Attachments by Outlook Email – Python SMTP Tutorial

1.Import library

import smtplib 

from email.mime.base import MIMEBase 
from email.mime.multipart import MIMEMultipart 
from email.mime.text import MIMEText
from email import encoders

2.Define email sender and recipient addresses

fromaddr = 'SENDER EMAIL ADDRESS'
toaddr = 'RECIPIENT EMAIL ADDRESS'

3.Create an instance of MIMEMultipart() class

msg = MIMEMultipart()

4.Build email message

msg['From'] = fromaddr

msg['To'] = toaddr

msg['Subject'] = 'This is the subject of my email'
body = 'This is the body of my email'

msg.attach(MIMEText(body))

5.Add file attachment to email

files = ['PATH TO FILE 1', 'PATH TO FILE 2', 'OTHER FILES']
for filename in files:

    attachment = open(filename, 'rb')

    part = MIMEBase("application", "octet-stream")

    part.set_payload(attachment.read())

    encoders.encode_base64(part)

    part.add_header("Content-Disposition",
    f"attachment; filename= {filename}")

    msg.attach(part)

msg = msg.as_string()

6.Start to send email

try:
    server = smtplib.SMTP('smtp.gmail.com:587')
    server.ehlo()
    server.starttls()
    server.login(fromaddr, 'gpjeukeadncvznul')
    server.sendmail(fromaddr, toaddr, msg)
    server.quit()
    print('Email sent successfully')
except:
    print("Email couldn't be sent")