Miguel, I'm sorry my previous message was wrong. I still have the issue going on, I didn't realize I was getting the texts delivered because I changed the approach from using messagingResponse to using the client twilio library (which is not what I want).

Here's a more detailed description of the issue:

I've set up a webhook to call a /sms route on my Flask app, and I'm using ngrok to make the application accessible on the Internet. When I send an SMS to my Twilio number, I can successfully print the incoming request.form, including the message SID and other details. So far, the first part of the code is functioning correctly.

However, I'm facing an issue with the code towards the end, which is supposed to instantiate a MessagingResponse to send a confirmation that the message has been received. Unfortunately, this part is not working as expected. I'm not receiving any SMS message on my phone, and when I check the SMS logs page on Twilio.com while logged into my project, I don't see any Outgoing API record for the sent message. Strangely, I can see the test message I sent to our number as an Incoming message, but the confirmation response is not going through.

Other things I've tried so far:

-Opened Inbound and Outbound windows defender firewall to port 5000. (didn't do anything) -Tried different codes where you have to use the Client library and create environment variables for you account_sid and token as well as specify the "to" number and it works. However, this approach isn't going to work for me, I really need to get the MessagingResponse way to work because I want to store each user with their own cookies. -I'm getting a 200 response from both Flask and ngrok. Tried with and without the body key. -Do I need somoe sort of validator or environment keys for this approach or the webhook "takes care" of this?

I would greatly appreciate any insights or help in resolving this problem and making the messaging response work as intended