In this article, we will see how we can send email with attachments using Python. To send mail, we do not need any external library. There is a module called SMTPlib, which comes with Python. It uses SMTP (Simple Mail Transfer Protocol) to send the mail. It creates SMTP client session objects for mailing.
SMTP needs valid source and destination email ids, and port numbers. The port number varies for different sites. As an example, for google the port is 587.
At first we need to import the module to send mail.
Here we are also using the MIME (Multipurpose Internet Mail Extension) module to make it more flexible. Using MIME header, we can store the sender and receiver information and some other details. MIME is also needed to set the attachment with the mail.
We are using Google's Gmail service to send mail. So we need some settings (if required) for google's security purposes. If those settings are not set up, then the following code may not work, if the google doesnot support the access from third-party app.
To allow the access, we need to set 'Less Secure App Access' settings in the google account. If the two step verification is on, we cannot use the less secure access.
To complete this setup, go to the Google's Admin Console, and search for the Less Secure App setup.
import smtplib from email.mime.multipart import MIMEMultipart from email.mime.text import MIMEText from email.mime.base import MIMEBase from email import encoders mail_content = '''Hello, This is a test mail. In this mail we are sending some attachments. The mail is sent using Python SMTP library. Thank You ''' #The mail addresses and password sender_address = 'email@example.com' sender_pass = 'xxxxxxxx' receiver_address = 'firstname.lastname@example.org' #Setup the MIME message = MIMEMultipart() message['From'] = sender_address message['To'] = receiver_address message['Subject'] = 'A test mail sent by Python. It has an attachment.' #The subject line #The body and the attachments for the mail message.attach(MIMEText(mail_content, 'plain')) attach_file_name = 'TP_python_prev.pdf' attach_file = open(attach_file_name, 'rb') # Open the file as binary mode payload = MIMEBase('application', 'octate-stream') payload.set_payload((attach_file).read()) encoders.encode_base64(payload) #encode the attachment #add payload header with filename payload.add_header('Content-Decomposition', 'attachment', filename=attach_file_name) message.attach(payload) #Create SMTP session for sending the mail session = smtplib.SMTP('smtp.gmail.com', 587) #use gmail with port session.starttls() #enable security session.login(sender_address, sender_pass) #login with mail_id and password text = message.as_string() session.sendmail(sender_address, receiver_address, text) session.quit() print('Mail Sent')
D:\Python TP\Python 450\linux>python 327.Send_Mail.py Mail Sent