I have spent hours searching for a solution to no avail. I am trying to include some images in automatically generated emails, and have come up against some problems. I Cannot include the actual url as gmail blocks the images totally, so I am trying to send as attachments and then use Cids to reference the attachments. The issue is I haven't found a way to do this. Any help would be ace.
I am running python 3.6 on with Apache2 on an Ubuntu server. I have tried encoding images in base64 but that didnt work at all. the images in the email simply didnt show up.
def createVoucher(email, expiry):
voucherId = str(uuid.uuid4())
email = email
value = 1
expiryDate = expiry
redeemed = 1
connection = mysql.get_db()
cursor = connection.cursor()
cursor.execute("INSERT INTO vouchers (VoucherID, Value, ExpiryDate, Redeemed, Email) VALUES (%s,%s,%s,%s,%s)", (voucherId, value, expiryDate, redeemed, email))
msgBody = render_template('admin/eVoucherEmail.html', voucherId=voucherId, expiry=expiry)
msg = Message('New Sunday Funday eVoucher Received', sender = MAIL_USERNAME, recipients = [email])
msg.html = msgBody
with app.open_resource("static/img/Facebook.jpg") as fp:
msg.attach("Facebook.jpg", "image/jpg", fp.read())
mail.send(msg)
connection.commit()
So the code posted works fine attaching the file, it's just assigning a content id that I can use where I am struggling.
Here's how I insert an inline jpg using flask_mail.
versions: python=3.7.6, flask=1.1.2, and flask-mail=0.9.1
The "disposition" in message.attach needs to be "inline", and the html for the img should contain "cid:my_cid" as the src.
import uuid
from flask import Flask
from flask_mail import Mail, Message
from pathlib import Path
app = Flask(__name__)
app.config.update(
MAIL_SERVER='smtp.gmail.com', MAIL_PORT=465, MAIL_USE_SSL=True,
MAIL_USERNAME="[email protected]", MAIL_PASSWORD="myfakepw54858939")
flask_mail = Mail(app)
def test_send_voucher():
to_addr = "[email protected]"
expiry = "29 February"
voucher_png_path = Path(__file__).parent / "static/Facebook.jpg"
sendVoucherEmail(app, to_addr, expiry, voucher_png_path)
def sendVoucherEmail(app: Flask, to_addr: str, expiry: str, voucher_png_path: Path):
voucher_id = str(uuid.uuid4())
html = f"""<html><head></head><body>
<p>Congratulations on your voucher!<br>Your voucher code is {voucher_id}.
The offer expires on {expiry}.<br>
<img src="cid:voucher_png" width=200>
</p></body></html>"""
with app.app_context():
mail = Mail(app)
message: Message = Message(subject="my subject", sender="[email protected]",
recipients=[to_addr], html=html)
with app.open_resource(voucher_png_path) as fp:
message.attach(filename="myfilename.png", content_type="image/png", data=fp.read(),
disposition="inline", headers=[['Content-ID', '<voucher_png>']])
mail.send(message)
This example successfully sent an email via gmail, with an inline image "Facebook.jpg," as in the original question.
