In your views.py you can do something like this
from os import error
import smtplib
import  csv 
from email.mime.text import MIMEText
def mass_mailing_script():
    with open('receipients.csv', 'r') as csvfile:
        reader = csv.reader(csvfile)
    
    try:
        count = 0
        for line in reader:
            if(len(line) < 1):
                continue
            email_send = line[0]
            subject ="Your message for the email" 
            html_body = open("text.html")
            msg = MIMEText(html_body.read(), "html")
            msg['From'] = email_user
            msg['To'] = email_send
            msg['Subject'] = subject
            text = msg.as_string()
            server.login(email_user, password)
            server.sendmail(email_user, email_send, text)
            count +=1
            print(str(count) + ". Sent Email to: " + email_send)
                
    except:
        print("error")
then in your template in this case it would be text.htmml
<!DOCTYPE html
    PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns:v="urn:schemas-microsoft-com:vml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0;" />
    <!--[if !mso]-->
    <!-- -->
    <link href='https://fonts.googleapis.com/css?family=Work+Sans:300,400,500,600,700' rel="stylesheet">
    <link href='https://fonts.googleapis.com/css?family=Quicksand:300,400,700' rel="stylesheet">
    <script src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.0-2/js/brands.min.js" integrity="sha256-OjapPU7ZR5ESNNSe21vgHeQCya5MZT4Y3X94x0JrP90=" crossorigin="anonymous"></script>
    <!-- <![endif]-->
    <title>MPT 1.0 Results</title>
    <style type="text/css">
        body {{
            width: 100%;
            background-color: #ffffff;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            mso-margin-top-alt: 0px;
            mso-margin-bottom-alt: 0px;
            mso-padding-alt: 0px 0px 0px 0px;
        }}
        p,
        h1,
        h2,
        h3,
        h4 {{
            margin-top: 0;
            margin-bottom: 0;
            padding-top: 0;
            padding-bottom: 0;
        }}
        span.preheader {{
            display: none;
            font-size: 1px;
        }}
        html {{
            width: 100%;
        }}
        table {{
            font-size: 14px;
            border: 0;
        }}
        /* ----------- responsivity ----------- */
        @media only screen and (max-width: 640px) {{
            /*------ top header ------ */
            .main-header {{
                font-size: 20px !important;
            }}
            .main-section-header {{
                font-size: 28px !important;
            }}
            .show {{
                display: block !important;
            }}
            .hide {{
                display: none !important;
            }}
            .align-center {{
                text-align: center !important;
            }}
            .no-bg {{
                background: none !important;
            }}
            /*----- main image -------*/
            .main-image img {{
                width: 440px !important;
                height: auto !important;
            }}
            /* ====== divider ====== */
            .divider img {{
                width: 440px !important;
            }}
            /*-------- container --------*/
            .container590 {{
                width: 440px !important;
            }}
            .container580 {{
                width: 400px !important;
            }}
            .main-button {{
                width: 220px !important;
            }}
            /*-------- secions ----------*/
            .section-img img {{
                width: 320px !important;
                height: auto !important;
            }}
            .team-img img {{
                width: 100% !important;
                height: auto !important;
            }}
        }}
        @media only screen and (max-width: 479px) {{
            /*------ top header ------ */
            .main-header {{
                font-size: 18px !important;
            }}
            .main-section-header {{
                font-size: 26px !important;
            }}
            /* ====== divider ====== */
            .divider img {{
                width: 280px !important;
            }}
            /*-------- container --------*/
            .container590 {{
                width: 280px !important;
            }}
            .container590 {{
                width: 280px !important;
            }}
            .container580 {{
                width: 260px !important;
            }}
            /*-------- secions ----------*/
            .section-img img {{
                width: 280px !important;
                height: auto !important;
            }}
        }}
    </style>
    <!-- [if gte mso 9]><style type=”text/css”>
        body {{
        font-family: arial, sans-serif!important;
        }}
        </style>
    <![endif]-->
</head>
<body class="respond" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
    <!-- pre-header -->
    <table style="display:none!important;">
        <tr>
            <td>
                <div
                    style="overflow:hidden;display:none;font-size:1px;color:#ffffff;line-height:1px;font-family:Arial;maxheight:0px;max-width:0px;opacity:0;">
                   
                </div>
            </td>
        </tr>
    </table>
    <!-- pre-header end -->
    <!-- header -->
    <table border="0" width="100%" cellpadding="0" cellspacing="0" bgcolor="ffffff">
        <tr>
            <td align="center">
                <table border="0" align="center" width="590" cellpadding="0" cellspacing="0" class="container590">
                    <tr>
                        <td height="25" style="font-size: 25px; line-height: 25px;"> </td>
                    </tr>
                    <tr>
                        <td align="center">
                            <table border="0" align="center" width="590" cellpadding="0" cellspacing="0"
                                class="container590">
                                <tr>
                                    <td align="center" height="70" style="height:70px;">
                                        <a href=""
                                            style="display: block; border-style: none !important; border: 0 !important;"><img
                                                width="300" border="0" style="display: block; width: 300px;"
                                                src="https://d33wubrfki0l68.cloudfront.net/981a1f42efb275c0eb1bf3d22cbcd4feba6cf195/d5c72/assets/img/kit/dsclogo.png" alt="" /></a>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    <tr>
                        <td height="25" style="font-size: 25px; line-height: 25px;"> </td>
                    </tr>
                </table>
            </td>
        </tr>
    </table>
    <!-- end header -->
    <!-- big image section -->
    <table border="0" width="100%" cellpadding="0" cellspacing="0" bgcolor="ffffff" class="bg_color">
        <tr>
            <td align="center">
                <table border="0" align="center" width="590" cellpadding="0" cellspacing="0" class="container590">
                    
                    <tr>
                        <td height="20" style="font-size: 20px; line-height: 20px;"> </td>
                    </tr>
                    <tr>
                        <td align="center"
                            style="color: #343434; font-size: 24px; font-family: Quicksand, Calibri, sans-serif; font-weight:700;letter-spacing: 3px; line-height: 35px;"
                            class="main-header">
                            <div style="line-height: 35px">
                                HEY <span style="color: #5caad2;">{name}</span>
                            </div>
                        </td>
                    </tr>
                    <tr>
                        <td height="10" style="font-size: 10px; line-height: 10px;"> </td>
                    </tr>
                    <tr>
                        <td align="center">
                            <table border="0" width="40" align="center" cellpadding="0" cellspacing="0"
                                bgcolor="eeeeee">
                                <tr>
                                    <td height="2" style="font-size: 2px; line-height: 2px;"> </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    <tr>
                        <td height="20" style="font-size: 20px; line-height: 20px;"> </td>
                    </tr>
                    <tr>
                        <td align="center">
                            <table border="0" width="400" align="center" cellpadding="0" cellspacing="0"
                                class="container590">
                                <tr>
                                    <td align="center"
                                        style="color: #888888; font-size: 16px; font-family: 'Work Sans', Calibri, sans-serif; line-height: 24px;">
                                        <div style="line-height: 24px">
                                            Kudos on your excellent success and good luck for more progress. Don't get disheartened if your scores aren't satisfying. You'll get better with more practice!
                                            If you want to know where you stand, we have released the leaderboard below.
                                        </div>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    <tr>
                        <td height="25" style="font-size: 25px; line-height: 25px;"> </td>
                    </tr>
                    <tr>
                        <td align="center">
                            <table border="0" align="center" width="160" cellpadding="0" cellspacing="0"
                                bgcolor="5caad2">
                                <tr>
                                    <td height="10" style="font-size: 10px; line-height: 10px;"> </td>
                                </tr>
                                <tr>
                                    <td align="center"
                                        style="color: #ffffff; font-size: 14px; font-family: 'Work Sans', Calibri, sans-serif; line-height: 26px;">
                                        <div style="line-height: 26px;">
                                            <a href="#" style="color: #ffffff; text-decoration: none;">RESULTS</a>
                                        </div>
                                    </td>
                                </tr>
                                <tr>
                                    <td height="10" style="font-size: 10px; line-height: 10px;"> </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                    <tr>
                        <td align="center">
                            <table border="0" width="400" align="center" cellpadding="0" cellspacing="0"
                                class="container590">
                                <tr>
                                    <td align="center"
                                        style="color: #888888; font-size: 16px; font-family: 'Work Sans', Calibri, sans-serif; line-height: 24px;">
                                        <div style="line-height: 24px">
                                            <br>
                                            Learn and analyze from your mistakes and see where you went wrong <u><a href="https://drive.google.com/file/d/1ao-9ncCpSUOx-YkdI45OLLFiVWwLnO_J/view?usp=sharing" target="_blank">here</a></u>.<br>
                                            Also, find your personalized analysis report <u><a href="{link}" target="_blank">here</a></u>.<br><br>
                                            If you haven't filled out the <b><u><a href="#" target="_blank">feedback form</a></u></b> yet, please do it now. It will be really useful for us to conduct the upcoming tests. <br><br>
                                            <i>P.S Follow us on Instagram at dscjssstu for Quick Updates regarding MPT 2.0 and further events.</i>
                                        </div>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                </table>
            </td>
        </tr>
    </table>
    <!-- end section -->
    <!-- contact section -->
    <table border="0" width="100%" cellpadding="0" cellspacing="0" bgcolor="ffffff" class="bg_color">
        <tr class="hide">
            <td height="25" style="font-size: 25px; line-height: 25px;"> </td>
        </tr>
        <tr>
            <td height="40" style="font-size: 40px; line-height: 40px;"> </td>
        </tr>
        <tr>
            <td height="60" style="border-top: 1px solid #e0e0e0;font-size: 60px; line-height: 60px;"> </td>
        </tr>
        <tr>
            <td align="center">
                <table border="0" align="center" width="590" cellpadding="0" cellspacing="0"
                    class="container590 bg_color">
                    <tr>
                        <td>
                            <table border="0" width="300" align="left" cellpadding="0" cellspacing="0"
                                style="border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;"
                                class="container590">
                                <tr>
                                    <!-- logo -->
                                    <td align="left">
                                        <a href=""
                                            style="display: block; border-style: none !important; border: 0 !important;"><img
                                                width="100" border="0" style="display: block; width: 100px;"
                                                src="https://d33wubrfki0l68.cloudfront.net/58f92715e27dd6332fc56c0acde5d772734ec17d/b31ed/assets/img/logos/dsc_header.png" alt="" /></a>
                                    </td>
                                </tr>
                                <tr>
                                    <td height="25" style="font-size: 25px; line-height: 25px;"> </td>
                                </tr>
                                <tr>
                                    <td align="left"
                                        style="color: #888888; font-size: 14px; font-family: 'Work Sans', Calibri, sans-serif; line-height: 23px;"
                                        class="text_color">
                                        <div
                                            style="color: #333333; font-size: 14px; font-family: 'Work Sans', Calibri, sans-serif; font-weight: 600; mso-line-height-rule: exactly; line-height: 23px;">
                                            Email us: <br /> <a href="mailto:dsc.jssstu@gmail.com"
                                                style="color: #888888; font-size: 14px; font-family: 'Hind Siliguri', Calibri, Sans-serif; font-weight: 400;">dsc.jssstu@gmail.com</a>
                                        </div>
                                    </td>
                                </tr>
                            </table>
                            <table border="0" width="2" align="left" cellpadding="0" cellspacing="0"
                                style="border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;"
                                class="container590">
                                <tr>
                                    <td width="2" height="10" style="font-size: 10px; line-height: 10px;"></td>
                                </tr>
                            </table>
                            <table border="0" width="200" align="right" cellpadding="0" cellspacing="0"
                                style="border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;"
                                class="container590">
                                <tr>
                                    <td class="hide" height="45" style="font-size: 45px; line-height: 45px;"> </td>
                                </tr>
                                <tr>
                                    <td height="15" style="font-size: 15px; line-height: 15px;"> </td>
                                </tr>
                                <tr>
                                    <td>
                                        <table border="0" align="right" cellpadding="0" cellspacing="0">
                                            <tr>
                                                <td>
                                                    <a href="https://www.instagram.com/dscjssstu/"
                                                        style="display: block; border-style: none !important; border: 0 !important;"><img width="24" border="0" style="display: block;" src="https://i.imgur.com/JGhQe6S.png" alt=""></a>
                                                </td>
                                                <td>    </td>
                                                <td>
                                                    <a href="https://github.com/dsc-jssstu"
                                                        style="display: block; border-style: none !important; border: 0 !important;"><img width="24" border="0" style="display: block;" src="https://i.imgur.com/RQFfyuT.png" alt=""></a>
                                                </td>
                                                <td>    </td>
                                                <td>
                                                    <a href="https://www.facebook.com/dsc.jsstu.3"
                                                        style="display: block; border-style: none !important; border: 0 !important;"><img width="24" border="0" style="display: block;" src="https://i.imgur.com/MoaKQkE.png" alt=""></a>
                                                </td>
                                            </tr>
                                        </table>
                                    </td>
                                </tr>
                            </table>
                        </td>
                    </tr>
                </table>
            </td>
        </tr>
        <tr>
            <td height="60" style="font-size: 60px; line-height: 60px;"> </td>
        </tr>
    </table>
    <!-- end section -->
</body>
</html>