Sending multiple Emails using Python script

 # Separately send mail using their mail


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


#The mail addresses and  password
sender_address =’Enter Sender Mail ID’                  
sender_pass =’Enter Sender Password’                                       

# list of reciver email_id to the mail 
li = ['recivermail1@gmail.com','recivermail2@gmail.com','recivermail3@gmail.com']                                                         
#[item for item in input("Enter Receiver Mail Address :- ").split()] this is used to take user input of receiver mail id


# getting length of list 
length = len(li) 
   
# Iterating the index 
# same as 'for i in range(len(list))' 

# Here we iterate the loop and send msg one by one to the reciver
for i in range(length): 
    
    X = li[i]
    reciver_mail = X
    
    print(reciver_mail)
    
    message = MIMEMultipart()
    message['From'] = sender_address
    message['To'] =  reciver_mail             #  Pass Reciver Mail Address
    message['Subject'] =  'Mail using python'       #The subject line
     

    mail_content = '''Hello,
    This is a simple mail. There is file attachments in the mail, The mail is sent using Python SMTP library.
    Thank You'''

    
    #The body and the attachments for the mail
    message.attach(MIMEText(mail_content, 'plain'))
    #Create SMTP session for sending the mail
    # open the file to be sent  
    filename = ‘File name with extension’                                                    #str(input('Enter File Name With Extension To Attchment :- '))

    # Open PDF file in binary mode
    # The file is in the directory same as where you run your Python script code from 
    with open(filename, "rb") as attachment:
        # MIME attachment is a binary file for that content type "application/octet-stream" is used
        part = MIMEBase("application", "octet-stream")
        part.set_payload(attachment.read())
    # encode into base64 
    encoders.encode_base64(part) 

    part.add_header('Content-Disposition', "attachment; filename= %s" % filename) 

    # attach the instance 'part' to instance 'message' 
    message.attach(part) 


    s = smtplib.SMTP('smtp.gmail.com', 587) 
    s.starttls() 
    s.login(sender_address, sender_pass) 
    text = message.as_string()
    s.sendmail(sender_address, reciver_mail, text) 
    s.quit() 

    print('Mail Sent')

# It Send Separated Mail one by one each receiver mail 

# Import  required libraries

import smtplib
import ssl
from email.mime.text import MIMEText
from email.utils import formataddr
from email.mime.multipart import MIMEMultipart  # New line
from email.mime.base import MIMEBase  # New line
from email import encoders  # New line

# User configuration
sender_email = 'Enter Sender Mail id'
sender_name = 'Enter name of sender'
password = 'Enter Sender mail password'



receiver_emails = ['Pass reciver mail address']
receiver_names = ['pass reciver name']


# Email body
email_html = open('Pass HTML File name with Extenstion ')   #Example:- open('Classy.html')
email_body = email_html.read()       # Read HTML File 

filename = 'Enter file name with Extenstion'

for receiver_email, receiver_name in zip(receiver_emails, receiver_names):
        print("Sending the email...")
        # Configurating user's info
        msg = MIMEMultipart()
        msg['To'] = formataddr((receiver_name, receiver_email))
        msg['From'] = formataddr((sender_name, sender_email))
        msg['Subject'] = 'Hello, My Friend ' + receiver_name
    
        msg.attach(MIMEText(email_body, 'html'))

        try:
        # Open PDF file in binary mode
            with open(filename, "rb") as attachment:
                    part = MIMEBase("application", "octet-stream")
                    part.set_payload(attachment.read())
            # Encode file for ASCII character.
           l
            encoders.encode_base64(part)

            # Add header to the email as key/value pair to attachment part
            part.add_header(
                    "Content-Disposition",
                    f"attachment; filename= {filename}",
            )

            msg.attach(part)
        except Exception as e:
                print(f'Oh no! We didn\'t found the attachment!\n{e}')
                break

        try:
                # Creating a SMTP session use 587 with TLS for gmail port.
                server = smtplib.SMTP('smtp.gmail.com', 587)
                # Encrypts the email
                context = ssl.create_default_context()
                server.starttls(context=context)
                # We log in into our Google account
                server.login(sender_email, password)
              
  # from sender, to receiver with the email attachment of html body
                server.sendmail(sender_email, receiver_email, msg.as_string())
                print('Email sent!')
        except Exception as e:
                print(f'Oh no! Something bad happened!\n{e}')
                break
        finally:
                print('Closing the server...')
                server.quit()